The boss of the Black Rose Gang and mother to Yoruru and Kim Riha. She has a legendary record of fighting thirty people at once and winning. A scar over her right eye is her defining feature. She does not have a bright personality. She wants her children to follow in her footsteps as bosses of the Black Rose Gang rather than getting lost in their studies. She frequently engages in turf wars with other organizations and neither befriends nor cooperates with them.

The husband of Dan Miho, the boss of the Black Rose Gang. He has a kind and gentle personality.

Dan Miho's daughter, roughly in her first year of middle school. She does not love Go Cho-jun.

Dan Miho's son. He is much more integrated into the gang lifestyle than Yoruru, though he hasn't gone as far as taking over his school yet. He is the first son.

The boss of the Gochujang Gang and Go Cho-jun's mother. She is a mother who tries to give her son everything he wants. The Gochujang Gang is a powerful organization with a significant number of members.

He likes Yoruru and is trying to force her into a relationship by threatening to harm her family.