When he was in the second year of junior high school, the girl sitting next to him, Satomi (Momoko Fukuchi), was in a dilemma because her refill of a fountain pen broke. Fukuda Yu (Kazuya Ohashi) couldn't stand it anymore, so he quietly put his refill on Satomi's desk. Then Satomi suddenly split the eraser in her hand into two, handed one of them to him, and said "thank you" with a smile. His heart was instantly taken away by Satomi. From this incident, Fukuda began a 13-year love story. @哦撸马（阿点）