In which Jaehyun is in love with his best friend, but Sicheng is dating Yuta. Instead, of confessing to his best friend, he decides to write his feelings day by day in a diary.
Taeyong is new to Sm High and is very shy and quiet. Yuta quickly befriends him and they become inseperable. Soon Taeyong learns about Jung Jaehyun; the popular, fun, happy, exciting guy everyone loves. He isn't scared to try new things. Jaehyun exposes Taeyong to things he had never even dreamed of doing before. Drinking. Vaping. Staying out past curfew. Even sex. Taeyong at first though is a little skiddish because he's always been a sweet innocent kid that was never one to take risks. But Jaehyun changes that and they fall for each other- hard.