|Voice Actor (jp)||Junichi Suwabe|
Eisuke Inukai (犬飼 英介; Inukai Eisuke) is an additional character in the manga and anime series Akuma no Riddle. He is the adoptive mother of Isuke Inukai and is in a homosexual relationship. He undertook assassinations individually, rather than belonging to a specific organization. However, his lover/Isuke's father isn't an assassin, but a completely normal person instead.
Sometime in the past, Isuke Inukai's parents neglected and were about to kill her, but he happened to be next door and intervened killing them. However, he was a little too late to save her brother. After, he introduced himself and gave a name to her on the spot, claiming that she will be his new daughter. He then wanted her to help and succeed him as a hit man.
- Isuke calls him mama.
- Eisuke is gay as Isuke said in ep 2