Zelo and Young Mi had been friends since they were in primary. They know everything about each other except the only thing each keeps to themselves, that they love the other one. Both thought the other only consider him/her as brother/sister.

Zelo used to love her as a yo-dongsaeng (female dongsaeng) but then as his love grows he tried to show her his feelings but the clueless Young Mi who over the time also developed feelings for Zelo didn't know how to express what's in her heart to a person she thinks only see her as a 'sister'.

They love each other very, very much.

But they both are so confused

that they make those stupid assumptions!

Credit to MusicChibi for the poster <3