Ikuta Aoi has a crush on a girl in his class and he tries to confess to her, but in his nervousness accidentally insults her. To make matters worse, the whole embarrassing scene is witnessed by Shizu-sensei, the handsomest and most popular teacher in school…who also happens to be the object of Aoi's crush's affections.

One thing leads to another and Aoi ends up speaking rudely to Shizu-sensei. From there on out, Aoi finds himself being forced to run errands for him as penance…