About:
Yook Sung-jae (육성재) is a South Korean singer and actor.  He is a member of the boyband BtoB.

• Known For
• 
  BTOB TIME: Be Together the Movie
  as
  Self
• 
  Way Back Home
  as
  Bullied Student
• 
  Remember That
  as
  Sung-jae
• 
  United Cube Concert - One
  as
  Himself
• 
  Law of the Jungle