Sensei nante Kirai desu.  

I Really Hate You, 先生なんて嫌いです。

Ikuta Aoi has a crush on a girl in his class and tries to confess to her. However, he becomes nervous and accidentally insults her during the conversation. To make matters worse, this embarrassing scene is witnessed by Shizu, the popular teacher who also happens to be the object of Aoi's affection. As a result, Aoi ends up speaking rudely to Shizu, leading to him being forced to run errands for him as punishment.