He has a friend group with 5 other guys: Leehan, Sungho, Riwoo, Taesan and Jaehyun.
Jaehyun is his childhood best friend.
Although he has always been so bright and uplifting, he has a dark past. His father abused his mother and left him and her alone from when he was 12 years old. It's given him trauma.
Although he's the class clown, he often cries himself to sleep and struggles to find someone to lean on. On the rare occasion he gets angry and becomes violent. He can get shy.