During Doyoon’s childhood, Soohyun was a college student who tutored him for several years, and that’s when Doyoon’s first love began. But their contact suddenly stopped without warning, and a few years later, they meet again at university as student and professor. For some reason, though, unlike Doyoon who’s happy to see him, Soohyun keeps his distance. Doyoon can also feel that something about him has changed… At the same time, he starts hearing strange rumors about Soohyun from his classmates, and from there, Doyoon’s wild pursuit to get involved with Soohyun begins.