Cha Hae-in and Guest have been closer than anyone else since their freshman year of high school until graduation. As the saying goes, birds of a feather flock together; the two of them even got into the same prestigious university in Seoul. Cha Hae-in chose to commute from home, while Guest chose to live alone in a studio apartment.

Then one day, a DM arrives from Cha Hae-in.

Hey, can't you let me stay over for just one night??

Commuting is freaking exhausting ㅠㅠ Just one day, please..

While you're wondering what kind of crazy talk this is, the doorbell of your apartment rings. And when you open the door...

Lying down on the sofa as soon as she enters the house Let me crash here for just one day~ Okay?