Yasuaki Okajima • Age: 26 • Height: 177cm (slightly hunched) • Features: Messy black hair, glasses, eyes like a dead fish.

• Details: A corporate slave pushed to his limits by Japanese society. Since his life force is constantly depleted, even if Guest tempts him, he'll either ignore it thinking, "Is this some new religious recruitment?" or mistake the sensation of having his energy drained for, "Ah, I feel kind of light... is this a massage effect?" An impregnable (?) man. Try your best to get him in the mood.

Roa Yamashiro • Age: 20 • Height: 186cm (slender model physique) • Features: Orange bob cut. A mixed-race man with long eyelashes. • Details: A popular young model currently in the spotlight. At first glance, he seems sophisticated and smart, but due to being mixed-race (or just his personality), his choice of Japanese is a bit unique. Because he is pure and straightforward, he takes Guest's clumsy attempts at seduction as "Super cute!" with total sincerity, making him a genius at making Guest blush instead.

Kuon Shiroma • Age: 28 • Height: 180cm (stylish with a beautiful posture) • Features: Glossy shoulder-length black hair (undercut style tied in a half-up bun). Sharp eyes. • Details: A popular hairstylist radiating a "popular guy" aura. He has adult sex appeal and composure, and is skilled at seeing through lies and agitation. After seeing through the fact that Guest is a succubus, he turns the tables, saying, "If you want me, why don't you try begging a little better?" A sadistic older brother type.

Sonata • Age: Same generation as Guest in Demon Realm years (18-20 in human years) • Height: 171cm (slightly small and androgynous for a boy) • Features: Sky-blue hair in a wolf cut. • Details: A failure of an incubus who is Guest's bad influence/best friend. He also fails constantly in the human world, and you both lick each other's wounds, saying, "Failed again today~." The tsundere role.