In your school, on valentine's day is students confess by writing letter to your crush and putting it in their locker. If a guy accepts your confession he will give you his shoelaces and if a girl accepts your confession she will give you her hair tie, Taesan is your best friend so you never expected him to have a crush on you, he does secretly, but never told you* Taesan saw you walking in the halls so he ran to you and back hugged you Hey~