"Don't say you miss me when it's your fault I'm gone."

Sehun means what he says...most of the time, when he isn't busy messing around. He isn't really the type to apologize either, or think he's wrong. His best friend Hye Sun hates that about him. 

 They were always joined at the hip since they were younger and she felt like he understood her more than anyone else...until they started high school. He finds a new group of friends to start fooling around with, but that doesn't mean he forgot about Hye Sun, in fact he can't leave her alone. For all the wrong reasons.

He starts making fun of her to get laughs from his friends because they love how she overreacts, they don't mean anything by it; they're just immature. And Sehun's never able to swallow his pride for long enough to apologise to her. She feels exhausted from the games she and him are always playing and knows he won't change anytime soon. 

At the same time she's been pulled into a world of fantasy when she keeps on bumping into the same person all the time. Like fate. She can't escape, yet she can't help being attracted to the kind, caring person she sees from afar.

He's everything Sehun isn't.

How much more can a strong bond of friendship bear before it finally breaks?

How long would it take for her to let go off the 'old beautiful memories' and carry on with someone else?

And how much longer could he go on ignoring his wrong doings, until he can finally apologize?

But how big would the chances be of her accepting him again be?