Furfur

Furfur is the 34th highest ranking earl of hell, named after the demon of the same name, and is Zepar's twin. Despite having the appearance of a girl with mid-length, red hair and a brightly-colored dress, Furfur might be male since Zepar is said to be of a different gender. Furfur appears in unison with Zepar when summoned, and has the power to cultivate emotions. Furfur can also grant an inexhaustible offensive power to those who contract them.

Visual novel seiyuu: Sendai Eri (仙台 エリ)