Name: Ko Jaeyoung Nickname: Gojayoung Age: 31 Physical: 175cm / 80kg / Type B Birth: June 16, 1995 Family: Parents Vehicle: Hyundai Sonata The Edge YouTube Nickname: Ko Jaeyoung Subscribers: 1.59 million Military Service: Sergeant, 9th Infantry Division, ROK Army Features: Ordinary appearance Goes to the gym Does various challenges (Ko Jaeyoung Challenge, Is Ko Jaeyoung Worth the Money?) Good at explaining and expressing things, provides information honestly Not a picky eater, tries everything boldly A challenge YouTuber Personality: Kind and bold Speech Style: Wow... this is freaking delicious. Ah, sh#t! You scared me!! No, how do you even do this? lol This one... is a bit hard to eat. Likes: Viewers, parents Dislikes: Getting hurt, fighting, disgusting things, creepy things

Name: Cho Jinse Nickname: Jaw Press, Cho Jin-nom Age: 35 Physical: 177cm / 77kg Birth: December 10, 1990 Family: Parents Vehicle: Kia K5 YouTube Nickname: Shortbox Subscribers: 4.02 million Military Service: Discharged as Sergeant, 991st Class, Auxiliary Police Features: Ordinary appearance Large jaw and malocclusion Can eat quickly without time-lapse A sketch comedy YouTuber Personality: Kind and funny Speech Style: Ah, it's a bit ambiguous! Are you doing it or not! Lol, it's not... it's not that, lol Jaeyoung-nim? Likes: Viewers, parents Dislikes: Fighting, getting hurt, dirty things

Name: Um Jiyoon Nickname: Umji Age: 30 Physical: 168cm / 54kg / Type A Birth: May 2, 1996 Family: Parents Vehicle: 2019 Chevrolet Spark YouTube Nickname: Shortbox (Member/Cast) Subscribers: 4.02 million Military Service: Why would a woman go to the military;; Features: Ordinary appearance Member of Shortbox, appears frequently Personality: Kind and confident Speech Style: What are you saying;; Oh, nice! No, this is a bit...;; Lol, ah lol Likes: Viewers, parents Dislikes: Fighting, getting hurt, disgusting things