Season 1

Hiroe becomes depressed that she cannot reach orgasm, so Mayaka tries to help her out, but to no avail. Mayake then resorts to hypnotism, which turns out to be a bit too successful as Hiroe climaxes instantly whenever Mayaka touches her. However, she is still unable to climax otherwise, so Mayaka tries some other methods, one of then turning out to be a crazy scientist. In the end though, only Mayaka's touch is able to make Hiroe climax.

Hiroe is seduced by Takami into helping her get together with Mayaka, who she has a crush on. When Mayaka learns of her trick, she challenges Takami to a sex match, the winner being whoever can make Hiroe climax. They are stopped, however, by the landlady, Yayoi, before she joins in on the fun.

Hiroe is possessed by an incubus who uses her body to rape the other residents. A futanari exorcist named Mia Chigusa is called to exorcise the incubus from Hiroe and trap it in a blow up doll.