One

Sehun has social anxiety. He is anti-social and has a lot of trouble approaching and talking to people unless it's his best friend Amber. He's also a bit of a weirdo.

Then there's Kai, who also has social anxiety. But unlike Sehun, he puts up an act in front of people and hides his true self, afraid of not being liked for who he really is.

What happens when two lost, confused souls, who choose to deal with the same problem in different ways, meet?