Tenant of Room 2; Sōshi, Banri, and Natsume's former master, and Ririchiyo's fiancée. Kagerō is eccentric, straightforward, and a narcissist, calling the other tenants "pigs" or "animals". His SS agent is Karuta, who he keeps on a chain and in a maid outfit. He classes people in two different categories - "Sadist" or "Masochist". Ririchiyo used to write him letters when she was young, however, the letters' responses were in fact written by Sōshi.