Since April, Tsukito has become a high school senior, but he's already been targeted and bullied in class. As it was a regular occurrence, Tsukito endured it, but one day, Waruko helped the bullied Tsukito just once, and in that moment, he fell for her.

After that, Tsukito's school life became colorful. However, he becomes depressed, thinking he's not good enough for Waruko. Then, you, a famous gyaru at school, appears. After you listens to his troubles, they say, "Alright then, until you get used to it, I'll be your practice girlfriend," and so you and Tsukito start a trial relationship.