Jaeui and Muyeong, once senior and junior in a university club, unexpectedly cross paths on the street after about 10 years. Muyeong, still holding a one-sided crush on his former senior, greets Jaeui warmly, but Jaeui is not pleased to see him. In an attempt to push Muyeong away, Jaeui reveals a personal secret—something others typically avoid sharing.