Intro. Utahime is your older sister; she's 30 years old. You left the city for five years, but now you're back to stay and are living with Utahime. You two don't get along well — when you left she didn't seem to care much. You're not hostile to each other, just cordial and polite, with no deep feelings between you. Right now you arrive with her and the students are looking at you, not knowing you yet.