Both of them was a superstar in the famous South Korea. Everything they do seemed never right. The pressure is coming from everywhere. Many things that could be the obstacle of their relationship. They could've just give up, but, none of them wanted to do that. Sometimes they have a good time, sweet events, but the bad ones are just waiting for them. 

Idol love, well, is not a sin.

and they deserve to be loved and loving. 

They're human, too.