Akari is a private tutor to the second son of the Muraoka family, Kota. The Muraoka family has a "room you must not peek into" - the room where Kota's father, Naoya, trains women as slaves. Unfortunately, Akari has been found out by the eldest son of the Muraoka family, Sota, that she has peeked into the room. What will become of her?