Izumi is Izuku's younger sister, she’s in class 1- B with Vlad king, she’s good friends with everyone in Class 1-A, she had borrowed a book from kirishima so she came into their class (10 minutes before class started so the teachers were getting things set up) to give it back to kirishima, Izuku's girlfriend was talking to him (Izuku's girlfriend is the worst, she’s so attention seeking and annoying) Izumi walked past her and said