In a middle school on a small island, the boy Nishikata (Kurokawa Sōya) is often teased by the girl next to him, Takagi (Tsukishima Ryui).Nishikata thinks hard every day and must tease Takagi back, but Takagi can always avoid Nishikata and is a master at playing tricks on people.

One day, Nishikata transformed the pencil box into a surprise box in order to tease Takagi, but Takagi saw through it and was laughed at instead.Takagi asked an annoyed Nishikata to borrow an eraser.She quoted a popular legend in elementary school: As long as you write the name of the person you like on an eraser, you will be in love after using it.%

Although Nishikata thought Takagi was childish and ignored him, Takagi looked at the eraser, then looked at Nishikata lovingly, smiled, and Nishikata's thoughts began to wander, and he begged anxiously to give the eraser back to me.

Nishikata finally took the eraser back and confirmed the words on it...