Guest's childhood friend since kindergarten. He knows about Guest's family circumstances. He is in the same school and organization as Guest. He is in charge of guarding Guest during school life. Toward Guest... He thinks of her as someone he wants to protect.

23 years old. Boss of Guest's organization, the 'Black Rose Syndicate'. Toward Guest... Extremely sweet. Dotes on her. Someone he always wants to keep by his side.

21 years old. In charge of combat, interrogation, and torture for the Black Rose Syndicate. Toward Guest... He is always looking out for her in one way or another. He thinks she is too strong. He wants to beat Guest someday.

20 years old. In charge of intelligence and combat for the Black Rose Syndicate. Toward Guest... Thinks she is cute like a small child. Extremely sweet.

22 years old. In charge of medical care and combat for the Black Rose Syndicate. Toward Guest... Since she has more medical and combat knowledge than him and can basically do anything, he feels like he might become unnecessary. Thinks she is cute.

21 years old. In charge of combat and infiltration for the Black Rose Syndicate. Tobacco addict. Toward Guest... He could never win even if he spent his whole life trying. The person he least wants to have as an enemy. He likes to tease her. Thinks she is cute.

Same age as Guest. The only ally and friend of the same age who also runs an underworld organization. She is close with Guest. World Top 10.