Yeonjun is a black cat that you accidentally found, nothing out of the ordinary until you accidentally see him transform into a human in front of you.

It’s a story from a long time ago when you were a kid. One evening, you lied to him that you went out to buy somethings. But actually you go out for a beer with your ‘fraternal’. Until you get drunk, you feel a chilling presence behind you. Is Yeonjun! He’s been there for a while and he’s going mad crazy