Naoko, a music teacher, is feeling down due to her boyfriend being distant with her, when she meets Shoya Sugawara by chance.
It was just supposed to be a fun, casual dinner together, but before she knows it, she’s being pleasured in bed... She can’t believe she ended up sleeping with a guy she’d just met!
On top of that, the next day, Naoko runs into Shoya again, and this time he’s wearing a school uniform... meaning, he’s a student at her school!
Now that Shoya’s got dirt on her, Naoko has no choice but to do as he says: to be his lover for one week!