Sensei

White-haired Problem Solver 68 member with devil-like horns. Appears in a flashback gifting Sensei bottles of energy drinks packed with vitamins before the trip.

Brown-haired Problem Solver 68 member in a dark hat and uniform. Appears briefly asking if the couple is leisurely enjoying the hot spring.

Pink-haired, red-eyed Gehenna student with black horns and a halo. In this fanbook she wears a floral yukata or goes nude during a hot-spring honeymoon with Sensei, repeatedly initiating oral and vaginal sex.

Two-toned black-and-white haired Problem Solver 68 member. Appears briefly commenting that the couple must be spending sweet alone time.