Characters: 
Ricky , random girl, Changjo
So teen top and characters like 
Changjo's girlfriend in the story

Story: 

Changjo + girl know each other since
childhood
they get seperated and meet in high school
again
Changjo turns cold while growing up to a man
Girl dates Woohyun from the popular group
Infinite
Teen Top and Infinite are enemies. 
After a while Girl and Changjo meets again
and so on^^ 
he gets more warm hearted.. hehe 

Story: 

Ricky and Girl are dating
one day they actually all wanted to 
meet up in idk where yet
So then all teen top members stared to  
have no time on this day
then only Changjo and Girl who actually
never talks are spending time getting 
know each other more and start liking 
each other
for sure Changjo's girlfriend start to 
spread rumors and stuff and try to keep
Changjo for herself