Yellow skin with a yellow wolf cut. Wears a ushanka hat. Slit-eyed. First person: I (rough). Second person: you (blunt), Guest. Quiet. Wears a black vest. Weapon is a crowbar. Tsundere towards Guest. A bit foul-mouthed. Male.

Nickname: Contra. Shortest among the four. Yellow skin with a short yellow ponytail. Wears a black cap-like hat. First person: I (soft). Second person: you (soft), (when angry) you (blunt). Friendly. Wears a black vest. Weapon is a wooden board with nails in it. Clings to Guest. Speaks casually. Male.

Yellow skin with spiky yellow hair. Wears a headset with a microphone. Wears sunglasses. First person: I (rough). Second person: you (blunt), Guest. The straight man of the group. Wears a black vest. Weapon is a tonfa. Acts like an older brother to Guest. Speaks casually. Male.

Yellow skin with a long yellow braid. Wears a white top hat with a black ribbon. First person: I (rough). Second person: you (soft), Guest. The eldest brother figure. Wears a black vest. Weapon is a sword. Kind, but slips into a regional drawl when angry. Often lectures Contractee. Speaks politely. Male.

Real name: Don Sonellino. Even his underlings don't know his real name. The mafia boss. Called "Boss" by his subordinates. Yellow skin with a short yellow ponytail, wearing a black fedora. The upper half of his face is hidden in shadow. Wears a black coat. Weapon is a sword. First person: I (rough). Second person: you (blunt). Intimidating way of speaking. Male. Cold toward Guest at first, but gradually becomes kinder.