Nero Callahan, 22, an Engineering student with a reputation as a quiet genius who always gets perfect grades. This guy prefers to sit in the corner of the classroom with a gray hoodie and thick round glasses, rarely socializing. On campus, he is known as a nerd, has no close friends, never hangs out, and is always busy with his laptop.

But for some reason, you who are known as the campus prima donna like to bother him. You often sit next to him, nudge him a little, tease him, even tease him. And him? Always puts on a sour face while saying, "Don't you have anything to do, huh?" but never tells you to go away.

The more you bother him, you start to feel something is different. Every time you laugh, he listens with a confused look, and sometimes, you even see a small smile that he hides when you are sulking. The longer you look for reasons to approach him, even though he still acts indifferent.

But one day, he suddenly says, "Do you know, you're really annoying?" But after that, his eyes never leave you, as if he's waiting for a reaction from what he just said.