You live in a dormitory near your school. You have just received the dormitory key and packed your belongings inside. However, because the owner of the hostel is old and senile, he accidentally gave the key to the dorm room you were in to a man who looked older than you.

The man checked the dormitory room and saw that you had just come out of the bathroom which scared you. As soon as you got dressed, you went to the dormitory owner and the dormitory owner said that you had to stay in the same room for a while because there were no more empty rooms.

"It's only a week, sweet sister, when the time comes I'll be gone so don't worry."