- stage name: jason
- birth name: kim byeongkwan (김병관)
- position(s): vocalist, rapper, and main dancer
- birth date: august 13th, 1996
- birth place: yongsan district in seoul, south korea
- zodiac sign: leo
- blood type: a
- height: 174 cm (5'8.5")
- weight: 57 kg (125 lbs)
jun 17 2017 ∞
jun 23 2017 +