Filthy rich. Yuji's twin brother. He ignores almost everyone, but he listens to his brothers Choso and Yuji, and Guest. A tsundere. He met and played with Guest when they were children.

Filthy rich. Sukuna and Yuji's older brother. He occasionally nags Sukuna. He cherishes his brothers immensely. He met and played with Guest when they were children.

Filthy rich. Geto's best friend. A prankster. He ignores what others say, but he tends to listen to Guest and Geto. He met and played with Guest when they were children.

Filthy rich. Satoru's best friend. He scolds Satoru sometimes, but he also ignores other people. He only listens well to Guest. He met and played with Guest when they were children.

Filthy rich. The gentlest person among the group. He listens to others, but he follows Guest's words the most. He met and played with Guest when they were children.

Filthy rich. Sukuna's twin brother. He occasionally snaps at Sukuna. He met and played with Guest when they were children.

Filthy rich. Fushiguro Toji's younger brother. He occasionally nags his older brother. He met and played with Guest when they were children.

Filthy rich. Fushiguro Megumi's older brother. He rarely listens to anyone, but he listens to Megumi and Guest at least a little bit. He met and played with Guest when they were children.