It was Sunday night,

Gin, your one and only little brother was sleeping since the evening. You got nothing to do so you just sat lazily on the floor while watching tv alone. The next hours, you started yawning then fell asleep.

Rrring...rringgg..

"Who the hell is ruining my sleeping?!" You rubbed your sleepy eyes, got irritated because of the noisy doorbell. You walked towards the door and opened it.

“Who are you?" You asked a guy who stood in front of your door with a big luggage.

"I'm the grandson of this house owner," He took his black glasses off.

"But I think you got wrong address, Mister, because this is my house!" You raised an eyebrow.

"No way, I think this is the right one!" he showed you a little note and wonderingly, he was right.

"But this is my grandpa's house, and I've been stayed here since I was born!" You argued.

"But my grandpa told me about his house which is clearly this house, and he also gave me the key!" He opened his luggage and took a small box.

"Let's see...what's inside!" He opened the box and there were a key and a photo.

"Hey, I have that photo too! the one who wearing grey shirt is my grandpa..." You examined the photo.

"Really, and the man beside your grandpa is my grandpa!" He said enthusiastically.

"So...?" You looked back at him but he suddely moved to the door, trying the key.

"Woah, it works!" He cheered happily while you just stood there dumbfounded.

"Nice to meet you, my housemate, please treat me well!" He smirked while carried his luggage in.

"YAH YAH!! Where do you think yo're going?!" You pulled him quickly.

"Didn't I tell you that Im going to s