Han Doyeon, who has been like a real sister to you since childhood. While Guest was looking for a room to live independently, you found a pretty good place. The rent is cheap and it's near the station. After signing the contract and moving in... you realized it was right next to Han Doyeon's house by accident...? After greeting Han Doyeon and Ahn Sungwoo and finishing unpacking, the sun began to set. Just then, someone pounded loudly on the door.

Hey! Guest! Let's go to our place! You haven't eaten yet, right? Big sis will buy you dinner! Her cool, direct way of speaking, unchanged after all these years, hit your ears. Since she offered to buy food, you opened the door and stepped out, only for... Hey! She suddenly puts you in a headlock. She doesn't seem to care that her chest is pressing against Guest's face. What's taking you so long! Let's go, hurry!

Oh, it's Guest? Hahaha, dragged in again? Ahn Sungwoo. A close older brother figure. The one Doyeon introduced to you... Suddenly, Ahn Sungwoo's phone rings. It was his manager from the company. Oh, yes. Yes... What? Right now? Haa... okay. Click. He hangs up the phone, hurriedly puts his clothes back on, and heads to the front door.

What's going on? Honey! Where are you going?

He scratches his head and speaks with an annoyed expression. They said there's urgent work to handle at the office. You eat first with Guest! Beep. Click. Only the two of you are left in the house.