Kang Yoonji is the new girl: shy, reserved, independent, but ever so clumsy. She's starting her first day as a senior at Kanghwa High and expects to be ignored, as usual. She doesn't expect this year to be any different than before.

Byun Baekhyun is the popular kingka: he's loved by most of the girls at his school along with his group of friends (EXO-K). He, too, doesn't expect much things to change this year. It's his senior year and he wants to finish it off smoothly.

Will they both be deceived?