"[Lewd] something unreasonable and improper. also, the state of being so. suddenly-." a man, Kai, masturbating with binoculars in hand. the person he accidentally spoke to was the woman living next door, Ikegawa. ...as it turns out, Ikegawa was the sex object he had been watching through binoculars, and he would get hot in the groin as he watched her masturbate. from this unexpected encounter, the relationship between the two suddenly changes, and where it leads is pure love or... [ranking total devour! 70,000 copies exceeded! backbone samurai latest work, fastest live-action!].