- Title: 불야성 / Bulyaseong
- Genre: Melodrama, financial thriller, romance
- Episodes: 20
- Broadcast network: MBC
- Broadcast period: 2016-Nov-21 to 2017-Jan-24
- Air time: Monday & Tuesday 22:00
- Original Soundtrack: Night Light OST
Drama depicts the intense fight among three high-class and greedy individuals, in order to become the owner of most splendid light sources for the city that never sleep: money and power.
Seo Yi Kyung is a ruthless and sharp businesswoman, who is willing to do anything for her ambitions. Park Gun Woo is an heir to a big company who got betrayed by his love, Yi Kyung, 12 years ago. Lee Se Jin is a hired persona who gets attracted to Yi Kyung's aura and wants to be like her.
- Main Cast
- S Finance
- Se Jin's family
- Moojin Group
- World Finance
- Baeksong Foundation