ZEROBASEONE(제로베이스원), also known as simplyZB1, is a 9-member project group formed byMNET‘s survival showBOYS PLANET. The group consists ofSung Han Bin,Kim Ji Woong,Zhang Hao,Seok Matthew,Kim Tae Rae,Ricky,Kim Gyu Vin,Park Gun Wook, andHan Yu Jin. They are managed ...