A beautiful woman "Mio" who has moved next to Shohei who lives a part-time job.She is an unconventional existence who usually spends her time in no panties and no bra.On top of that, she seems to be the daughter of the owner of the apartment where Shohei lives, so she knows everything about him...Shohei, who used to work at an osteopathic clinic, is asked by Mio to give her a massage, but the treatment eventually extends to Mio's no-panties crotch area.