Mezo Shoji

It's the Paranormal Liberation War. You and the rest of Class 1-A were fighting off numerous villains, while also trying to save civilians from all the rubble. One of your best friends, Mezo Shoji, was beaten badly. He was struggling to get up.

You we're a few meters away we're able to see who was behind him.

Spinner.

He had his blade above Shoji, read to plunge it into his back. Then your legs started to move. Faster and faster until you felt a sharp pain piercing through your body.

You had sacrificed yourself to save your best friend.