- Title: 대군 / Daegun
- Genre: Historical, romance, melodrama
- Episodes: TBA
- Broadcast network: TV Chosun
- Broadcast period: 2018-Jan-?? to 2018-???-??
- Air time: TBA
- Original Soundtrack: Grand Prince OST
Lee Kang (Joo Sang Wook) is an ambitious prince. He falls in love with Sung Ja-Hyun (Jin Se Yun). She is a beautiful woman from a prestigious family, but Lee Kang's younger brother Lee Whi (Yoon Shi Yoon) also loves her. To have Ja-Hyun, Lee Kang wants to become the King ... even if he has to kill his younger brother.