Introducing characters :

Eunji; Eunji's luhan crush. Luhan had been liking her for quite long, since grade one. Her real name is Rei, but Luhan likes calling her Eunji instead of her real name. Sometimes luhan would give her a weird nickname out of nowhere, but she will just chuckles and accept it. Rei is a bubbly and cheerful girl, No one would ever see her sad. She's always surrounded by so many friends, guy and girl friends. And, Luhan just get jealous all the time. She's korean, but she had moved to US to study before coming back to korea again. 

Eunyoung; Oh Sehun's Offical girlfriend. The whole town and city knows her, not because of Sehun. Because of her own beauty, which captured all's attention on the internet. Sehun loves to call her, 'Baby' or 'Jagiya'. She's Kind, and friendly as she's also a close friend of Rei. She's totally someone who you can get close with easily, very easily. With her cute voice, she attracts alot of attention from the guys and even the girls, causing Sehun to be jealous over time. 

Sehun; His name is Oh Sehun. He's 16 years old. His Jongin's Adopted brother. They don't really talk much, when they see each other in school, for they will just wave at each other. Even at home, they don't communicate much. And he has a girlfriend. 

Kai and luhan: They started off being best friends since small untill now, nothing has changed. They are all grown up, matured enough. Both of them are 16 years old. Jongin can share any secrets to his luhannie hyung without any hesitation, even Jongin can't trust his adopted brother much as he trust his Luhannie hyung.