Characters:

Lee Yooin(You)

-Bubbly

-Kai's girlfriend for 3 years

-Loves kai and believe that Kai loves her too.

Kim Jongin(Kai)

-Rich

-Yooin's boyfriend.

-Does not love Yooin after meeting Krystal.

-Likes Krystal.

-Realised that he's a bastard after letting Yooin go.

-Credits to kbandaddictions for the lovely poster:)