Hinata, an innocent high schooler, is suddenly confronted by his super sexy tutor, Aoi! In addition, Aoi looks exactly like the porn star, Sumire Nanasato. WIth both parents out of the house, Hinata is at the mercy of Aoi-sensei. Will he be able to study without losing his mind? This is the start of a lesson about worldly desires taught by a super sexy Onee-san!

No hobbies, no holidays, no girlfriend, Enomoto lives only to work. Although she enjoys high school life, Rico finds it a little boring. It just so happens that these two swap bodies!? Thrown into their opposite lives, what a crisis! However, talking to women in the baths, and using gal power to fight off exploitative bosses... It's surprisingly cool!?