Mark was a simple boy. He was blindly in love with another boy too. His name is Sicheng, they share their Biology and Korean class together. Mark has loved him since the first time he saw him. But Sicheng has always belonged to someone else, Yuta. Yuta refuses to let them be friends- of course that can only keep for so long. Mark never fathered the courage to talk to Sicheng. It just happened that faithful day in the library.