(female chatter, reader)

You're on your way home from school, it's late at night and everyone should be asleep. Yes, you are a very ambitious student, so your teacher assigned you to take part in a mathematics olympiad and study at school until 10 at night. While walking, you meet a man with navy hair. He takes out his kagune and catches you

"Looks delicious" said the man while strangling your neck using his kagune