"You don't have to try so hard, though..." he says quietly, but loud enough for the girl to hear him.

Shin is well aware that, no matter how hard he tries to hide it from her or deny it to himself, the undeniable fact is that he loves her. Not as a sister. He has had feelings for her for a long time and has no idea when it started.

Hyang stares at Shin, clearly perplexed by his statement; what is the true meaning behind his words? She naturally expected him to say something like that because Shin was already in love with her, so she shouldn't have tried too...