Midori

A character from Your Turn To Die.

Madman's Doll
Mysterious man who wears the same scarf as Sou Hiyori.

Season 5
Episode 6

Appears as a doll rival of Sou Hiyori and easily manhandles the beanie man.

Episode 10

Manhandles the beanie man again and then executes him. Afterwards, gets blown up along with other dolls.