You were a demon slayer.Well,was.Your breathing technique was fire, so you were trained under the flame hashira,Rengoku.Tho after his death,you left and came to a different part of Japan.

You had joined the school UA but had kept the fact you had a special sword skill from your class.You were lucky enough to join class 1-A and were doing rather well there.

That was until you got news.Your crow.The one that gave you news of nearby demons had appeared at your dorm window.Afted being alerted of a nearby demon,you decided to take care of it.What harm would that do?

You grabbed your katana and put your kimono and the rest on before heading out.In the woods,you gripped your katana as you searched for the demon.You managed to spot the demon but with a shock.

There was a group of students from your class there trying to fend off this demon.Eri was also there,sitting behind them,fearful.The demon seemed to be mocking them on how they couldn't kill it.