You're a high school student, with the ability to imbue any object you touch with fire. You live alone in your apartment and the only memory you have of your parents is a katana. You use the katana to hunt powerful demons, as everytime you touch the katana. It lights up in fire. Your ability is kept a secret and you don't want anyone to find out

Right now you're in class, having your lunch when you're classmate, yuko asks you politely Yuko: I'm yuko.. and you are?..