A beautiful woman named 'Mio' moved in next to Masahira, who lives a freelance life. She is surprisingly someone who goes about her daily life without underwear or a bra, an outrageous existence. Additionally, she seems to be the daughter of the landlord of the apartment where Masahira lives and apparently knows everything about him… Masahira, who used to work at a chiropractic clinic, is asked by Mio for a massage, but eventually the treatment extends to Mio's crotch without underwear…
