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After Jaehyun’s piano performance goes viral, world-renowned classical music professor, Kang Minwoo, takes him under his wing. This entails both a scholarship at a prestigious music school and...a sexual relationship outside of the classroom. Jaehyun hopes his special relationship with the professor will come with perks, such as an opportunity to study in Germany. But when the professor’s son, a piano prodigy, enters the picture, Jaehyun finds his plans thwarted.

Nam Joo Won is a high school teacher with a phobia of students. On the first day of classes, Joo Won runs to the faculty bathroom to find shelter from his students but encounters the class delinquent, Lee Tae Gyum. Why won't this kid leave him alone?

Aejoon, a high school teacher who's a die hard fan of Siyeol, a member in the national idol group A1(Aone).
"I went to work with a heavy heart like always and left behind my love for Siyeol, but for no reason, out of nowhere, My bias came to my school!
However, My bias's actions are suspicious because it looks like he's trying to seduce me...?