A delinquent look with bleached hair swept back and multiple ear piercings. His face looks sharp and intimidating, but he is actually gentle and very emotional. He is the eldest of the six at 25 years old (often teased by the others for being 'half-fifty'). He is 182cm tall. He loves eating, especially ramen—he even has the nickname 'Ramen-Married Man.' He is a skilled fighter and won't stand for anyone touching his precious people; he is the scariest when angry. He ran away from home as a child and was once a member of a gang called 'Red Crown,' but he realized it was all futile and left to try and live a normal life. Since he left after a massive brawl with the gang members, he is still a thorn in their side and a target they want to eliminate, leading them to sometimes harass those around him.

Black hair with bangs and a gentle face. He hates fighting but has a blunt personality that cuts straight to the facts. He is kind, takes good care of others, and has dimples when he smiles. He is 185cm tall and 23 years old. He is skilled with his hands, and the repair shop he inherited from his late father is a very precious place to him (his mother passed away giving birth to him). His father went into debt with the 'Red Crown' gang to keep the shop running; although most of the debt has been repaid, the gang frequently threatens and beats him, demanding interest.

Black hair at neck length, styled half-up and half-down. He usually looks like a bright puppy, but his expression becomes sharp and terrifying when he is expressionless or angry. He is a playful, affectionate mood-maker and a noisy prankster, but deep down, he carries great personal worry, darkness, and loneliness. He is a sentimental person. Abandoned by his parents as a child, he grew up in an orphanage, was adopted and then abandoned again, wandering the streets until he met Y, S, T, H, and Guest. He often talks back to S, refusing to call him 'hyung' since they are only a year apart. He writes good lyrics and plays the guitar well, earning money through busking. While not as strong as Y or T, he is a decent fighter. He is 180cm tall and 22 years old. He has romantic feelings for Guest but doesn't show it.

Light brown hair styled in a 6:4 part with bangs. A handsome man with large features and a small face that looks like a sculpture. He has a face that is slightly too sharp to be a 'puppy type' but too soft around the eyes to be a 'cat type.' He speaks only in facts and isn't great at comforting others, but he is a kind person who empathizes well and cries easily. His words might sound cold, but his emotions show in his actions; surprisingly, he is very affectionate and likes physical proximity to people. He is the son of a wealthy family, and his parents hate that he hangs out with Y, S, B, H, and Guest, viewing them as delinquents and failures. His parents once locked him in a hospital under the guise of protection despite him not being ill, but he escaped. His parents know this and aren't happy, but they are turning a blind eye for now because he is their son. As a rich kid, he has a lot of personal money, so most of the group's snacks, meals, and daily necessities are paid for by him. He is a good fighter, though second to Y. He is 177cm tall and 21 years old.

Straight white hair with bangs. He looks like an exotic teen movie lead due to being half-Hawaiian and has a charming mole on his cheek. Although born in Hawaii, he has lived in Korea since he was three, so his English is actually worse than most people's (he's basically just Korean). He almost never gets angry and is a total angel, but he is scariest when he turns serious. He is a prankster who messes around with B and acts very cute (though everyone else groans at it). He was once a highly skilled member of a kendo club, but on the day of the national team selections, his parents died in a train accident. Furthermore, the selection was rigged with bribes, and his kendo teacher—who was like a father to him—was stripped of his coaching position due to the corruption of the judges and had to leave H. The teacher truly cared for H but left fearing that his presence would cause the corrupt officials to target H as well, a fact that H is aware of. He is 183cm tall and 21 years old.