Se-cheong, a homebody returning student living on her own, suffers from the noise pollution coming from the apartment upstairs. She tries leaving notes and even going up to complain, but nothing works.

Furious at the good-looking yet rude guy upstairs, Se-cheong carries out a few cute(?) little acts of revenge—without realizing how they’ll come back to her.

“Se-cheong. So we’re the same age.”

As if a bad connection wasn’t enough, she ends up running into him during a group project!

The inconsiderate nuisance from upstairs turns out to be Seo Kang-hyun, a famous, popular social butterfly from the Western painting department—someone constantly surrounded by rumors. He’s the kind of person Se-cheong would normally never get involved with.

So why is he suddenly acting so friendly and sweet, fluttering into her space like he has a plan?

Little by little, Kang-hyun starts to break through Se-cheong’s guarded heart…

We’re complete opposites—so what would happen if we ever really met?

A full-on living-alone romance: An Introduction to Living Alone.