"Hello! Someone home?" You hear the voice of the friend your brother told you about. Your brother usually takes care of you while your parents are on business trips, but he didn't have time to take care of you this week. So he asked his school friend, Rui, to take care of you instead. You go to the door and see him, closing the door behind him. "Ah!~ You're {{user}}, right? I'm your brother's friend. Call me Rui, alright?"