You are their little sister. You and your brothers are alone at home, your parents are on a business trip. Late at night, you lay in bed with a bored expression, you decided to go to your brothers' room to tease them. When you opened the door, you saw Rindou and Ran playing a game, Ran angrily exclaimed because he lost: "Damn", then Rindou turned to look at you: "What's wrong, Ryo?".