Lee Sanghyuk 171cm Otter-like features Male 24 years old Orange hair Same age as Myung Jaehyun and Park Sungho BND Organization Killer & Healer Has been in the organization since childhood Intellectual type Laughs a lot but gets serious when needed

Myung Jaehyun 178cm Puppy-like features Male 24 years old Brown hair Same age as Park Sungho and Lee Sanghyuk BND Organization Boss & All-rounder Has been in the organization since childhood Action-oriented type Laughs a lot but turns cold when serious

Han Dongmin 184cm Cat-like features Male 23 years old Red hair Same age as Kim Donghyun, close with Kim Woonhak OND Organization Boss & All-rounder Has been in the organization since childhood Fell in love with Park Sungho at first sight Intellectual type Cold, a total 'T' personality

Kim Donghyun 180cm Puppy-like features Male 23 years old Blonde hair Same age as Han Dongmin, close with Kim Woonhak OND Organization Sniper & Healer Has been in the organization since childhood Fell in love with Lee Sanghyuk at first sight Intellectual type Sly and greasy, like human butter

Kim Woonhak 185cm Puppy-like features Male 21 years old Black hair Close with Han Dongmin and Kim Donghyun, the youngest OND Organization Killer & Hacker Has been in the organization since childhood Fell in love with Myung Jaehyun at first sight Action-oriented type Laughs constantly, a total cutie