View source for Keishicho Sosa Ikka 9 Gakari

{{customTOC|Season 1|Season 2|Season 3|Season 4|Season 5|Season 6|Season 7|Season 8|Season 9 SP|Season 9|Season 10|Season 11|Season 12|External Links}}

==Details==
*'''Title:''' 警視庁捜査一課9係
*'''Title (romaji):''' Keishicho Sosa Ikka 9 Gakari
*'''Also known as:''' Homicide Team 9
*'''Format:''' Renzoku, over 12 seasons
*'''Genre:''' Crime drama
*'''Broadcast network:''' TV Asahi
*'''Related TV show:''' [[Tokusou 9]] (TV Asahi, 2018-2020)

==Season 1==
*'''Episodes:''' 10 plus special
*'''Viewership ratings:''' 13.7% (Kanto) (SP 10.5%)
*'''Broadcast period:''' 2006-Apr-19 to 2006-Jun-21 (SP 2006-Dec-27)
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Good Day!!'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===User/Viewer Ratings===
<vote type=1/>

===Cast===
[[File:9gakari1-chart.jpg|thumb|325px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Endo Kumiko]] as Kakiuchi Taeko
*[[Kaneko Norihito]] as Miyahara Reiji
*[[Ishibashi Tamotsu]] as Katayama Manabu
*[[Asami Reina]] as Anzai Tsukasa
*[[Hatano Hiroko]] as Yazawa Sanae
*[[Makoto Naoya]] (誠直也) as Koreeada Masashi
*[[Ushioda Yasuyo]] (牛尾田恭代) as Shoji Mami
*[[Kato Takako]] as Tokushima Sayaka (SP)
*[[Satoi Kenta]] as Mizuno Haruhisa (SP)
*[[Natori Yuko]] as Jinguji Momoko (SP)

===Guests===
*[[Nakayama Emiri]] as Kondo Yukino (ep1-2)
*[[Odaka Anna]] as Yasuda Manami (ep4)
*[[Kitahara Sawako]] (SP)
*[[Nagano Hiroshi]] as Manabe Akihisa (SP)

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The chain of perjury || 14.7
|-
| 02 || The killer live recording || 16.4
|-
| 03 || Madonna sniper || 11.9
|-
| 04 || The robbery game || 10.5
|-
| 05 || The unveiling-ceremony's corpse || 15.9
|-
| 06 || The mystery of the moving fingerprints || 11.6
|-
| 07 || The eyewitness onboard || 12.9
|-
| 08 || The dip pen's murderous intent || 12.3
|-
| 09 || The frozen bride || 14.5
|-
| 10 || The final judgement || 16.2
|-
! colspan=2 | Average || 13.7
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 2==
[[File:Keishicho-Sosa-Ikka-9-Gakar.jpg|thumb|400px|Keishicho Sosa Ikka 9 Gakari Season 2]]
*'''Episodes:''' 9
*'''Viewership ratings:''' 12.7% (Kanto)
*'''Broadcast period:''' 2007-Apr-25 to 2007-Jun-20
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''[[Jasmine]]'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:KSI9G-S2-chart.jpg|thumb|325px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Endo Kumiko]] as Kakiuchi Taeko
*[[Kaneko Norihito]] as Miyahara Reiji
*[[Asami Reina]] as Anzai Tsukasa
*[[Nakamura Shunsuke]] as Sonoda Shunsuke
*[[Kabashima Eiji]] (椛島永次) as Torigoe Teruaki
*[[Kagami Saki]] as Natsuki Risa
*[[Hatano Hiroko]] as Yazawa Sanae
*[[Kato Takako]] as Tokushima Sayaka
*[[Makoto Naoya]] (誠直也) as Koreeada Masashi

===Guests===
*[[Tsugawa Masahiko]] as Kitada Takeharu (ep6)
*[[Erena (1983)|Erena]] as Shida Hitomi (ep7)

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The cave king's revenge || 13.4
|-
| 02 || The killer chief || 10.0
|-
| 03 || The killer plastic surgery || 11.5
|-
| 04 || The paradise's devil || 13.7
|-
| 05 || The killing wedding gown || 15.9
|-
| 06 || The Superintendent General (Police)'s secret || 13.4
|-
| 07 || The coveted birthday party || 13.7
|-
| 08 || The rose lady || 9.7
|-
| 09 || The Last Supper (2hr-special) || 13.1
|-
! colspan=2 | Average || 12.7
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 3==
[[File:KSI9G-S3-banner.jpg|thumb|400px|Keishicho Sosa Ikka 9 Gakari Season 3]]
*'''Episodes:''' 10
*'''Viewership ratings:''' 11.5%
*'''Broadcast period:''' 2008-Apr-16 to 2008-Jun-18
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Chou'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:KSI9G-S3-chart.jpg|thumb|325px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Endo Kumiko]] as Kakiuchi Taeko
*[[Kaneko Norihito]] as Miyahara Reiji
*[[Asami Reina]] as Anzai Tsukasa
*[[Hatano Hiroko]] as Yazawa Sanae
*[[Makoto Naoya]] (誠直也) as Koreeada Masashi
*[[Toyohara Kosuke]] as Asawa Kazuki
*[[Miura Koichi]] (三浦浩一) as Anzai Daijiro
*[[Tanaka Minoru]] as Tojo Shusaku
*[[Kagami Saki]] as Natsuki Risa
*[[Natori Yuko]] as Jinguji Momoko

===Guests===
*[[Omura Ayako]] (ep2)
*[[Endo Kaname]] (ep4)
*[[Nagano Satomi]] (ep4)
*[[Murai Miki]] (ep8)

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The fallen angel || 9.7
|-
| 02 || Brothers || 11.4
|-
| 03 || The ornament (decoration) corpse || 12.1
|-
| 04 || The 50 thousand yen-hourly pay's killer || 10.7
|-
| 05 || The sealed investigation || 10.1
|-
| 06 || The piano that killed || 12.4
|-
| 07 || The glass that cannot be broken || 12.3
|-
| 08 || Suspicion's bride || 10.5
|-
| 09 || The red and white's murderous intent || 10.7
|-
| 10 || The killer lab || 15.4
|-
! colspan=2 | Average || 11.5
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 4==
[[File:KSI9G-S4-banner.jpg|thumb|400px|Keishicho Sosa Ikka 9 Gakari Season 4]]
*'''Also known as:''' Shin Keishicho Sosa Ikka 9 Gakari
*'''Episodes:''' 11
*'''Viewership ratings:''' 13.0% (Kanto)
*'''Broadcast period:''' 2009-Jul-01 to 2009-Sep-16
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''GUILTY'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:KSI9G-S4-chart.jpg|thumb|325px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Endo Kumiko]] as Kakiuchi Taeko
*[[Asami Reina]]
*[[Hatano Hiroko]] as Yazawa Sanae
*[[Hara Sachie]] as Hayasegawa Masumi

===Guests===
*[[Matsumoto Wakana]] (ep1)
*[[Kato Toranosuke]] (ep1)
*[[Nishida Ken]] (ep2)
*[[Takigawa Yumi]] (ep2)
*[[Yoshida Yo]] (ep2)
*[[Kaneda Akio]] (ep3)
*[[Fujioka Taro]] (藤岡太郎) (ep3)
*[[Tonesaku Toshihide]] (ep3)
*[[Sugawara Toshimi]] (ep4)
*[[Oura Ryuichi]] (ep4)
{{multicolumntext}}
*[[Kikawada Masaya]] (ep5)
*[[Naruse Masataka]] (成瀬正孝) (ep5)
*[[Ryu Kenzo]] (ep5)
*[[Kinoshita Houka]] (ep6)
*[[Watabiki Katsuhiko]] (ep6)
*[[Tate Misato]] (ep6)
*[[Sato Yusuke]] (ep6)
*[[Daike Yuko]] (大家由祐子) (ep7)
*[[Takano Shiho]] (ep7)
*[[Nakahara Kanan]] (ep7)
*[[Dan Jiro]] (ep8)
*[[Yue Takeyuki]] (ep9)
*[[Moriwaki Eriko]] (ep9)
*[[Ichijo Satoshi]]  (ep9)
*[[Ogoe Yuuki]] as young Akagi Takashi (ep9)
*[[Kondo Koen]] (ep9)
*[[Kobayashi Ryoko]] (ep10)
*[[Ito Yuko]] (ep10)
*[[Aijima Kazuyuki]] (ep10)
*[[Ida Kunihiko]] (ep10)
*[[Kazami Shingo]] (ep11)
*[[Nakanishi Ryota]] (ep11)
*[[Morishita Tetsuo]] (ep11)
{{multicolumn-end}}

===Production Credits===
*'''Screenwriter:''' [[Fukasawa Masaki]], [[Takigawa Akiyo]] (瀧川晃代)
*'''Executive producer:''' [[Matsumoto Motohiro]] (松本基弘)
*'''Producer:''' [[Kanamaru Tetsuya]] (金丸哲也), [[Maruyama Shinya]]
*'''Director:''' [[Yoshida Keiichiro]] (吉田啓一郎), [[Sugimura Rokuro]] (杉村六郎), [[Tamura Kozo]] (田村孝蔵)

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The killer fortune-telling || 13.5
|-
| 02 || The killer actress || 13.3
|-
| 03 || The murderous intent's rosary || 12.2
|-
| 04 || The killer scoop || 12.3
|-
| 05 || The killer diamond || 13.2
|-
| 06 || The killer recipe || 13.9
|-
| 07 || The case of the aromatherapy killer || 15.0
|-
| 08 || The killer diva || 13.6
|-
| 09 || The thunderbolt bride  || 12.7
|-
| 10 || A new combi is born || 11.3
|-
| 11 || Life's criminal investigation || 12.3
|-
! colspan=2 | Average || 13.0
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 5==
[[File:Keishichososaikka9gakari5.jpg|thumb|350px|Keishicho Sosa Ikka 9 Gakari Season 5]]
*'''Also known as:''' Shin Keishicho Sosa Ikka 9 Gakari Season 2
*'''Episodes:''' 12
*'''Viewership ratings:''' 14.7% (Kanto)
*'''Broadcast period:''' 2010-Jun-30 to 2010-Sep-15
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Only Dreaming'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:Keishichososaikka9gakari5_correlation.jpg|thumb|300px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Hara Sachie]] as Hayasegawa Masumi

===Guests===
{{multicolumntext}}
*[[Matsushige Yutaka]] (ep1)
*[[Okamoto Fujita]] (岡本富士太) (ep1)
*[[Kobashi Megumi]] (ep1)
*[[Miura Toko]] (ep1)
*[[Fujita Sokyu]] (藤田宗久) (ep1)
*[[Ishii Kenichi]] (ep1)
*[[Kobayashi Ayako]] (ep2)
*[[Ikeda Narushi]] (ep2)
*[[Sakura (actress)|Sakura]] (ep2)
*[[Kusano Toru]] (草野とおる) (ep2)
*[[Shigeta Chihoko]] (重田千穂子) (ep2)
*[[Aoyama Masaru]] (ep2)
*[[Takahashi Hitomi]] (ep3)
*[[Kino Hana]] (ep3)
*[[Kawai Ryunosuke]] (ep3)
*[[Anan Kenji]] (ep3)
*[[Yoshimoto Nahoko]] (吉本菜穂子) (ep3)
*[[Fuwa Mansaku]] (ep4)
*[[Sugawara Daikichi]] (ep4)
*[[Ito Yuki]] (ep4)
*[[Yamaguchi Ryuto]] (ep4)
*[[Akina]] (ep4)
*[[Horiuchi Keiko]] (ep5)
*[[Koichi Mantaro]] (ep5)
*[[Kenzou]] (建蔵) (ep5)
*[[Sawai Miyuu]] (ep5)
*[[Hashimoto Satoshi]] (ep6)
*[[Takahashi Yo]] (高橋洋) (ep6)
*[[Rokkaku Shinji]] (ep6)
*[[Ryuza]] (龍坐) (ep6)
*[[Shinkai Fuminori]] (ep6)
*[[Kato Yutsuki]] (加藤裕月) (ep6)
*[[Tamaki Yukari]] (珠木ゆかり) (ep6)
*[[Ono Haruko]] (小野晴子) (ep6)
*[[Kikuchi Maiko]] (ep7)
*[[Miyaji Masako]] (ep7)
*[[Nounen Rena]] as Ichinose Mirai (ep7)
*[[Tamiya Goro]] (田宮五郎) (ep7)
*[[Honda Daisuke]] (本田大輔) (ep7)
*[[Kanie Ippei]] (蟹江一平) (ep8)
*[[Konishi Miho]] (ep8)
*[[Ono Mayumi]] (ep8)
*[[Kobayashi Takashika]] (ep8)
*[[Miyazaki Tomu]] (ep8)
*[[Haneyuri]] (はねゆり) (ep8)
*[[Watanabe Tetsu]] (ep9)
*[[Bengal]] (ep9)
*[[Harada Kana]] (ep9)
*[[Ohmura Namihiko]] (大村波彦) (ep9)
*[[Yamada Kinuo]] (ep9)
*[[Kadena Reon]] (ep9)
*[[Shinoda Mitsuyoshi]] (ep9)
*[[Nakahara Takeo]] (ep10)
*[[Toyama Toshiya]] (ep10)
*[[Komiya Kumiko]] (ep10)
*[[Nakamura Tomoya]] (ep10)
*[[Yamazaki Daisuke]] (ep10)
*[[Uchino Kenta]] (内野謙太) (ep10)
*[[Tsurumi Shingo]] (ep11-12)
*[[Toyama Kyoko]] (ep11-12)
*[[Magii]] (ep11)
*[[Kobudera Akira]] (ep11)
*[[Matsunaga Kyoko]] (ep11-12)
*[[Izumi Rika]] (ep11)
*[[Matsumoto Runa]] (ep11-12)
*[[Baba Riria]] (馬場梨里杏) (ep11)
*[[Terada Minori]] (ep12)
*[[Kochi Machiko]] (ep12)
*[[Kamio Yu]] (ep12)
*[[Matsubayashi Shinji]] (ep12)
*[[Takechi Kenji]] (武智健二) (ep12)
*[[Tawaragi Tota]] (ep12)
*[[Niiro Toshimasa]] (新納敏正) (ep12)
{{multicolumn-end}}

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The tenth billion killer || 16.2
|-
| 02 || The killer yeast || 15.6
|-
| 03 || The killer bestseller || 15.1
|-
| 04 || A mail from the dead || 14.0
|-
| 05 || The killer DJ || 13.7
|-
| 06 || The lipstick killer || 15.2
|-
| 07 || The killer that heard || 13.3
|-
| 08 || The walking corpse || 15.3
|-
| 09 || Two bloodstains  || 15.5
|-
| 10 || The high-rise blind spot || 14.7
|-
| 11 || The killer nail || 13.6
|-
| 12 || Himico hijack || 14.2
|-
! colspan=2 | Average || 14.7
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

===Production Credits===
*'''Screenwriter:'''  [[Fukasawa Masaki]] (ep1,5,11,12), [[Okazaki Yukiko]] (岡崎由紀子) (ep2,9), [[Hatano Miyako]] (波多野都) (ep3), [[Tokunaga Tomihiko]] (徳永富彦) (ep4,10), [[Hasebeba Kushino]] (ハセベバ クシンオー) (ep6), [[Takigawa Akiyo]] (瀧川晃代) (ep7), [[Manabe Chiaki]] (真部千晶) (ep8)
*'''Director:''' [[Sugimura Rokuro]] (杉村六郎) (ep1,2,7,8,12), [[Yoshida Keiichiro]] (吉田啓一郎) (ep3,4,9), [[Hasegawa Yasushi]] (長谷川康)) (ep5,10), [[Tamura Kozo]] (長谷川康) (ep6,11)

==Season 6==
[[File:Shinkeishichososaikka9gakari3_2011.jpg|thumb|350px|Keishicho Sosa Ikka 9 Gakari Season 6]]
*'''Also known as:''' Shin Keishicho Sosa Ikka 9 Gakari Season 3
*'''Episodes:''' 11
*'''Viewership ratings:''' 15.8% (Kanto)
*'''Broadcast period:''' 2011-Jul-06 to 2011-Sep-14
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Sexy.Honey.Bunny'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:Shinkeishichos03_2011_correlationchart.jpg‎|thumb|250px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Hara Sachie]] as Hayasegawa Masumi

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The female cop that was made to disappear || 14.8
|-
| 02 || The killer birthday || 15.3
|-
| 03 || The secret of the red fragment || 15.5
|-
| 04 || The case of the ruby killer || 16.5
|-
| 05 || The gourmet's killer || 16.7
|-
| 06 || The secret room || 13.6
|-
| 07 || The killer courtroom || 16.6
|-
| 08 || The killer ravine || 15.6
|-
| 09 || The murderous intent's red line || 16.6
|-
| 10 || The devil's serial column || 17.0
|-
| 11 || The final bullet || 15.9
|-
! colspan=2 | Average || 15.8
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 7==
[[File:9gakari7.jpg|thumb|350px|Keishicho Sosa Ikka 9 Gakari Season 7]]
*'''Episodes:''' 10
*'''Viewership ratings:''' 11.8% (Kanto)
*'''Broadcast period:''' 2012-Jul-04 to 2012-Sep-05
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''kEEP oN.'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:9gakari7-chart.jpg‎|thumb|250px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Hara Sachie]] as Hayasegawa Masumi
*[[Hatano Hiroko]] as Yazawa Sanae
*[[Endo Kumiko]] as Kakiuchi Taeko
*[[Nishikibe Risa]] as Kana

===Guests===
*[[Kitahara Sawako]] (ep4)

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The U scar || 13.0
|-
| 02 || The killer pottery || 9.9
|-
| 03 || The case of the killer chef || 12.4
|-
| 04 || The murderous intent's grass || 13.0
|-
| 05 || A portrait of the devil || 10.4
|-
| 06 || The case of the aloha killer || 12.5
|-
| 07 || The quiet corpse || 9.2
|-
| 08 || The dog was watching || 11.4
|-
| 09 || The killers' reunion || 12.1
|-
| 10 || The killer orchestra || 14.0
|-
! colspan=2 | Average || 11.8
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 8==
[[File:9gakari8.jpg|thumb|300px|Keishicho Sosa Ikka 9 Gakari Season 8]]
*'''Episodes:''' 10
*'''Viewership ratings:''' 13.2% (Kanto)
*'''Broadcast period:''' 2013-Jul-10 to 2013-Sep-11
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Kimi ga Omoidasu Boku wa Kimi wo Aishiteiru Darouka'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:9gakari8-chart.jpg‎|thumb|150px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Hara Sachie]] as Hayasegawa Masumi

===Guests===
*[[Takahashi Maryjun]] (ep2)
*[[Ryu Kenzo]] as Tadokoro Kunio (ep2)
*[[Mikura Mana]] (ep10)

===Production credits===
*'''Screenwriter:''' [[Fukusawa Masaki]], [[Tokunaga Tomihiko]] (徳永富彦), [[Manabe Chiaki]] (真部千晶), [[Sudo Yasushi]] (須藤泰司), [[Okazaki Yukiko]] (岡崎由紀子), [[Takigawa Akiyo]] (瀧川晃代)
*'''Director:''' [[Hasegawa Yasushi]] (長谷川康), [[Yoshida Keiichiro]] (吉田啓一郎), [[Sugimura Rokuro]] (杉村六郎), [[Shinmura Ryoji]] (新村良二), [[Hosokawa Mitsunobu]] (細川光信), [[Tamura Kozo]] (田村孝蔵)
*'''General Producer:''' [[Matsumoto Motohiro]] (松本基弘)
*'''Producer:''' [[Yamada Kenji]], [[Kanamaru Tetsuya]] (金丸哲也), [[Maruyama Shinya]]
*'''Music:''' [[Yoshikawa Kiyoshi]] (吉川清之)

===Episode Ratings===
{| class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The hoax murder || 15.2
|-
| 02 || The killer hairdresser || 13.7
|-
| 03 || The runaway's intent to kill || 10.0
|-
| 04 || The early afternoon's death by shooting || 14.0
|-
| 05 || The killer live manuscript || 13.4
|-
| 06 || 127 intents to kill || 13.2
|-
| 07 || Death's pattern || 13.6
|-
| 08 || The killer stunt || 13.4
|-
| 09 || The killing necklace || 12.2
|-
| 10 || The killer captain || 13.2
|-
! colspan=2 | Average || 13.2
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

==Season 9 SP==
[[File:9gakari season9sp.jpg|thumb|300px|Keishicho Sosa Ikka 9 Gakari Season 9 SP]]
*'''Subtitle:''' 帰れない二人
*'''Subtitle (romaji):''' Kaerenai Futari
*'''Format:''' Tanpatsu
*'''Broadcast date:''' 2014-Jun-27
*'''Air time:''' Friday 23:25

===Synopsis===
{{nosynopsis}}

===Cast===
*[[Fukikoshi Mitsuru]] as Aoyaki Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Nishida Naomi]] as Konno Kyoko
*[[Takuma Takayuki]] as Mizuki Yuichi
*[[Suda Kohaku]] as Saito Minami

===Production Credits===
*'''Screenwriter:''' [[Mano Katsunari]] (真野勝成)
*'''Director:''' [[Sugimura Rokuro]] (杉村六郎)

==Season 9==
[[File:9gakari season9.jpg|thumb|300px|Keishicho Sosa Ikka 9 Gakari Season 9]]
*'''Episodes:''' 10
*'''Viewership ratings:''' 11.4% (Kanto)
*'''Broadcast period:''' 2014-Jul-09 to 2014-Sep-10
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Namida no Ato ga Kieru Koro'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:9gakari9-chart.jpg‎|thumb|150px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Hara Sachie]] as Hayasegawa Masumi
*[[Nakagoshi Noriko]] as Ishikawa Michiko

===Guests===
*[[Judai Satoshi]] (ep5)
*[[Komiya Arisa]] as Yamamura Fumi (ep5)
*[[Moriya Kanna|Mori Kanna]] (ep9)
*[[Seto Saori]] as Tomioka Kanon (ep10)

===Episode Ratings===
{|class="ratingtable"
! Episode !! Title !! Ratings<br>(Kanto)
|-
| 01 || The killer cruise || 11.9
|-
| 02 || World peace killings || 13.0
|-
| 03 || The killer guitar || 10.5
|-
| 04 || The killer household account book || 13.0
|-
| 05 || Murder musical || 10.4
|-
| 06 || Murderous thank-you letter || 11.4
|-
| 07 || Prescription for murder || 9.0
|-
| 08 || Murder university || 11.6
|-
| 09 || The killer Eau de Cologne || 11.0
|-
| 10 || Fateful murder case || 12.0
|-
!colspan=2| Average || 11.4%
|}
Source: [[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

===Production Credits===
*'''Screenwriter:''' [[Fukasawa Masaki]], [[Manabe Chiaki]] (真部千晶), [[Okazaki Yukiko]] (岡崎由紀子), [[Takigawa Akiyo]] (瀧川晃代), [[Takunaga Tomihiko]] (徳永富彦)
*'''General Producer:''' [[Matsumoto Motohiro]] (松本基弘)
*'''Producer:''' [[Yamada Kenji]], [[Kanemaru Tetsuya]] (金丸哲也), [[Maruyama Shinya]]
*'''Director:''' [[Hasegawa Yasushi]] (長谷川康), [[Nimura Ryoji]] (新村良二), [[Sugimura Rokuro]] (杉村六郎), [[Yoshida Keiichiro]] (吉田啓一郎)
*'''Music:''' [[Yoshikawa Kiyoshi]] (吉川清之)

==Season 10==
[[File:9gakari10.jpg|thumb|300px|Keishicho Sosa Ikka 9 Gakari Season 10]]
*'''Episodes:''' 10
*'''Viewership ratings:''' 11.9% (Kanto)
*'''Broadcast period:''' 2015-Apr-22 to 2015-Jul-01
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Timeless'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:9gakari10-chart.jpg‎|thumb|150px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Hara Sachie]] as Hayasegawa Masumi
*[[Nakagoshi Noriko]] as Ishikawa Michiko

===Guests===
*[[Ueno Natsuhi]] (ep1)
*[[Rikuna Yuka]] as Karasawa Itsuko (ep2)
*[[Yoshioka Riho]] (ep5)
*[[Okubo Satomi]] (ep10)

===Production Credits===
*'''Screenwriter:''' [[Fukasawa Masaki]], [[Okazaki Yukiko]] (岡崎由紀子), [[Manabe Chiaki]] (真部千晶), [[Takigawa Akiyo]] (瀧川晃代), [[Tokunaga Tomihiko]] (徳永富彦), [[Hasabe Bakushino]] (ハセベバクシンオー)
*'''General Producer:''' [[Matsumoto Motohiro]] (松本基弘)
*'''Producer:''' [[Mineshima Ayumi]] (峰島あゆみ), [[Kanamaru Tetsuya]] (金丸哲也), [[Nakao Ayuko]] (中尾亜由子)
*'''Director:''' [[Sugimura Rokuro]] (杉村六郎), [[Shinmura Ryoji]] (新村良二), [[Hasegawa Yasushi]] (長谷川康), [[Yoshida Keiichiro]] (吉田啓一郎)
*'''Music:''' [[Yoshikawa Kiyoshi]] (吉川清之)

==Season 11==
[[File:9gakari11.jpg|thumb|300px|Keishicho Sosa Ikka 9 Gakari Season 11]]
*'''Episodes:''' 11
*'''Viewership ratings:''' 12.14% (Kanto)
*'''Broadcast period:''' 2016-Apr-06 to 2016-Jun-15
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''Beautiful World'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:9gakari11-chart.jpg‎|thumb|150px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Hara Sachie]] as Hayasegawa Masumi
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Nogiwa Yoko]] as Saotome Shizuka

===Guests===
*[[Suda Rio]] as Adachi Mai (ep1)
*[[Shibuya Asuka]] (ep2)
*[[Kawamura Yukie]] (ep2)
*[[Deai Masayuki]] as Fukami Yukihiko (ep3)
*[[Judai Satoshi]] (ep5)
*[[Ishizaki Natsumi]] as Ida Tenshi (ep5)
*[[Yamada Mikuu]] (ep7)
*[[Uehara Takako]] as Hayashi Reimi (ep8)
*[[Saito Megumi (1985)|Saito Megumi]] (ep8)
*[[Yashiro Minase]] as receptionist (ep8)
*[[Moritaka Ai]] as Yuzuki Rena (ep9)

===Production Credits===
*'''Screenwriter:''' [[Fukasawa Masaki]], [[Okazaki Yukiko]] (岡崎由紀子), [[Manabe Chiaki]] (真部千晶), [[Takigawa Akiyo]] (瀧川晃代), [[Tokunaga Tomihiko]] (徳永富彦), [[Hasabe Bakushino]] (ハセベバクシンオー), [[Okawa Shundo]] (大川俊道)
*'''General Producer:''' [[Matsumoto Motohiro]] (松本基弘)
*'''Producer:''' [[Mineshima Ayumi]] (峰島あゆみ), [[Kanamaru Tetsuya]] (金丸哲也), [[Nakao Ayuko]]
*'''Director:''' [[Sugimura Rokuro]] (杉村六郎), [[Shinmura Ryoji]] (新村良二), [[Hasegawa Yasushi]] (長谷川康), [[Tamura Kozo]] (田村孝蔵), [[Hosokawa Mitsunobu]] (細川光信), [[Yoshida Keiichiro]] (吉田啓一郎)
*'''Music:''' [[Yoshikawa Kiyoshi]] (吉川清之)

==Season 12==
[[File:9gakari12.jpg|thumb|300px|Keishicho Sosa Ikka 9 Gakari Season 12]]
*'''Episodes:''' 9
*'''Viewership ratings:''' 11.51% (Kanto)
*'''Broadcast period:''' 2017-Apr-12 to 2017-Jun-07
*'''Air time:''' Wednesday 21:00
*'''Theme song:''' ''COLORS'' by [[Wikipedia:V6 (group)|V6]]

===Synopsis===
{{nosynopsis}}

===Cast===
[[File:9gakari12-chart.jpg‎|thumb|150px|Correlation chart]]
*[[Watase Tsunehiko]] as Kanou Rintaro
*[[Inohara Yoshihiko]] as Asawa Naoki
*[[Hada Michiko]] as Komiyama Shiho
*[[Tsuda Kanji]] as Murase Kengo
*[[Fukikoshi Mitsuru]] as Aoyagi Yasushi
*[[Taguchi Hiromasa]] as Yazawa Hideaki
*[[Hara Sachie]] as Hayasegawa Masumi
*[[Nakagoshi Noriko]] as Ishikawa Michiko
*[[Nakamura Shunsuke]] as Sonoda Shunsuke
*[[Takenaka Naoto]] as Mayuzumi Yunosuke
*[[Nogiwa Yoko]] as Saotome Shizuka
*[[Ryu Kenzo]] as Sugitani Michio

===Guests===
*[[Ito Takaaki]] (ep1)
*[[Hirano Takahiro]] (ep1)
*[[Tominaga Saori]] (ep1)
{{multicolumntext}}
*[[Tsutsui Mariko]] (ep2)
*[[Uesugi Shozo]] (上杉祥三) (ep2)
*[[Hirosawa Sou]] (ep2)
*[[Fuji Mariko]] (ep3)
*[[Yumesaki Nene]] (夢咲ねね) (ep3)
*[[Kajiwara Hikari]] (ep3)
*[[Kurokawa Mei]] (ep3)
*[[Hoemo Ai]] as young Mako (ep3)
*[[Shirasu Jin]] (ep4)
*[[Kasai Kenji]] (ep4)
*[[Matsushita Megumi]] (松下恵) (ep4)
*[[Marisa]] (万里紗) (ep5)
*[[Negishi Toshie]] (ep5)
*[[Kato Toranosuke]] (ep5)
*[[Matsumoto Kio]] (松本紀保) (ep6)
*[[Yamamoto Nami]] (山本南伊) (ep6)
*[[Aoyama Masaru]] (ep6)
*[[Kobayashi Ken]] (ep7)
*[[Kobayashi Ayako]] (ep7)
*[[Ikeda Michie]] (池田道枝) (ep7)
*[[Nakanishi Ryota]] (ep8)
*[[Kimura Sakae]] (木村栄) (ep8)
*[[Nanase Natsumi]] (ep9)
*[[Fujita Touko]] (藤田瞳子) (ep9)
*[[Inari Takuo]] (稲荷卓央) (ep9)
*[[Fuwa Mansaku]] (ep9)
{{multicolumn-end}}

===Production Credits===
*'''Screenwriter:''' [[Fukasawa Masaki]], [[Okazaki Yukiko]] (岡崎由紀子), [[Manabe Chiaki]] (真部千晶), [[Takigawa Akiyo]] (瀧川晃代), [[Tokunaga Tomihiko]] (徳永富彦), [[Hasabe Bakushino]] (ハセベバクシンオー), [[Okawa Shundo]] (大川俊道)
*'''General Producer:''' [[Matsumoto Motohiro]] (松本基弘)
*'''Producer:''' [[Kanda Amy Akiko]], [[Kanamaru Tetsuya]] (金丸哲也)
*'''Director:''' [[Sugimura Rokuro]] (杉村六郎), [[Shinmura Ryoji]] (新村良二), [[Hasegawa Yasushi]] (長谷川康), [[Tamura Kozo]] (田村孝蔵), [[Hosokawa Mitsunobu]] (細川光信), [[Yoshida Keiichiro]] (吉田啓一郎)
*'''Music:''' [[Yoshikawa Kiyoshi]] (吉川清之)

==External Links==
*[http://www.tv-asahi.co.jp/9gakari/ Official site]
*[http://www.tv-asahi.co.jp/9gakari_01/ Season 1: Official site]
*[http://www.tv-asahi.co.jp/9gakari_02/ Season 2: Official site]
*[http://www.tv-asahi.co.jp/9gakari_03/ Season 3: Official site]
*[http://www.tv-asahi.co.jp/9gakari_04/ Season 4: Official site]
*[http://www.tv-asahi.co.jp/9gakari_05/ Season 5: Official site]
*[http://www.tv-asahi.co.jp/9gakari_06/ Season 6: Official site]
*[http://www.tv-asahi.co.jp/9gakari_07/ Season 7: Official site]
*[http://www.tv-asahi.co.jp/9gakari_08/ Season 8: Official site]
*[http://www.tv-asahi.co.jp/9gakari_09/sp0627/ Season 9 SP: Official site]
*[http://www.tv-asahi.co.jp/9gakari_09/ Season 9: Official site]
*[http://www.tv-asahi.co.jp/9gakari_10/ Season 10: Official site]
*[http://www.tv-asahi.co.jp/9gakari_11/ Season 11: Official site]
*[http://www.tv-asahi.co.jp/9gakari_12/ Season 12: Official site]
*[[Wikipedia:ja:警視庁捜査一課9係|Japanese Wikipedia]]

{{SeasonRing|TV Asahi|Season 1|Winter 2006|[[Aibou 4]]|Summer 2006|[[PS Rashoumon]]}}
{{SeasonRing|TV Asahi|Season 2|Winter 2007|[[Aibou 5]]|Summer 2007|[[Sakurasho no Onnatachi]]}}
{{SeasonRing|TV Asahi|Season 3|Winter 2008|[[Aibou 6]]|Summer 2008|[[Gonzo]]}}
{{SeasonRing|TV Asahi|Season 4|Spring 2009|[[Rinjo]]|Autumn 2009|[[Aibou 8]]}}
{{SeasonRing|TV Asahi|Season 5|Spring 2010|[[Rinjo#Season 2|Rinjo 2]]|Autumn 2010|[[Aibou 9]]}}
{{SeasonRing|TV Asahi|Season 6|Spring 2011|[[Iryu Sousa|Iryu Sousa]]|Autumn 2011|[[Aibou 10]]}}
{{SeasonRing|TV Asahi|Season 7|Spring 2012|[[Answer]]|Autumn 2012|[[Aibou 11]]}}
{{SeasonRing|TV Asahi|Season 8|Spring 2013|[[Iryu Sousa#Season 3|Iryu Sousa 3]]|Autumn 2013|[[Aibou#Season 12|Aibou 12]]}}
{{SeasonRing|TV Asahi|Season 9|Spring 2014|[[TEAM ~Keishicho Tokubetsu Hannin Sosahonbu~|TEAM]]|Autumn 2014|[[Aibou#Season 13|Aibou 13]]}}
{{SeasonRing|TV Asahi|Season 10|Winter 2015|[[Aibou#Season 13|Aibou 13]]|Summer 2015|[[Keiji 7-nin]]}}
{{SeasonRing|TV Asahi|Season 11|Winter 2016|[[Aibou#Season 14|Aibou 14]]|Summer 2016|[[Keiji 7-nin#Season 2|Keiji 7-nin 2]]}}
{{SeasonRing|TV Asahi|Season 12|Winter 2017|[[Aibou#Season 15|Aibou 15]]|Summer 2017|[[Keiji 7-nin#Season 3|Keiji 7-nin 3]]}}

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