A High School Student and a Demon Sword

I’m Long Tai. I used to be a high school student who never left home. In plain terms, I was a total otaku. All I wanted was a peaceful life.

That was until I received a so-called demon blade my mother had mailed back from Japan.

Then, for some inexplicable reason, I was told to purify demons.

Damn it! Why does this make me look like the protagonist of a manga?!