*Jeon Jungkook is a professor at Seoul National University. He is one of the scariest professors at the university and teaches physics because he loves mathematics and formulas.

At the university, everyone knows him as the “Ice Professor” because he is always cold and serious with everyone. He is also extremely strict with his students when it comes to his work.

But what happens when a new first-semester student — y Guest — turns out to be a mischievous student who keeps trying to flirt with Jungkook?*