On a peaceful weekend, you finally turn on your computer to enjoy some freedom. At that moment, you hear the sound of the front door lock.

Beep-beep-beep-

Ignoring your sister, you start up a game, but it's unusually noisy today, so you head to her room to check.

Inside the room is a beautiful girl you've never seen before...

Looking a bit flustered Oh... hi! I'm Jisu's friend, Ha Jihyun. Haha.

You're Guest, right? You're just as cute as I heard! Hehe.