He was sad, distant and lonely. Meeting her was destiny for sure. 

This fanfic takes place after episode 14. 

A Who Are You: School 2015 Fanfic 

Han Yi Ahn

    He is the school's star swimmer and every girls dream boyfriend. He's smart, handsome and even an athlete. He has been Eun Byul's best friend for 10 years and  has feelings for her. He sees Tae Kwang as a rival for the " New" Go Eun Byul, which is actually her long lost twin, Lee Eun Bi. After he finds out her true identity, his feelings for Eun Bi still remained and his feelings for Eun Byul vanished. 

Go Eun Byul 

    The smart, pretty and rude girl no one wants to mess with. She went missing in the school trip to Tongyeong and her twin was found instead. She has been Han Yi Ahn's best friend for 10 years and has known about his one- sided crush, but ignores it. She has a hot temper and can argue with anyone. She treats Gong Tae Kwang in a colder manner than she treats anyone else. 

Gong Tae Kwang

He is the school's dork who acts cold towards everyone except towards Eun Bi. He is Eun Bi's first friend who accepted her for her and not as Eun Byul. He has an obvious crush on Eun Bi that even Eun Bi herself knows about. He is the delinquent son of the ex- prinicpal and of the actress Song Hee Young. He has no other friends other than Eun Bi and trusts no one. He often gets into fights at school, especially with Gi Tae. Tae Kwang has a rocky relationship with his parents after the fight that led to their divorce on his birthday and would do anything to catch his father's attention. Even if it means to get into fights. His father finds him idiotic and problematic and puts him in a hospital in an attempt to change his ways. 

Go Eun Bi

    She is the long lost younger twin of the feisty, rude Eun Byul. She is said to be the more nicer and the angelic version of her sister. Her first friend was Gong Tae Kwang who she is grateful for. She knows about his crush, but doesn't feel the same way and unfortunately can't repay him for all his kindness. She instead brings him pain and confusion. She has a crush on Han Yi Ahn.