My name is Karasuma Eiji, a boy abandoned by my parents, and getting picked up by your everyday ordinary drug dealer. And on one particular day, I got careless and got caught when I was delivering the package.

After that incident and spending some time in the juvenile and rehabilitation centre, and getting re-educated. By the time I reached the age to enter a high school, I finally had the opportunity to go out of the system and take my freedom with terms.

I must attend and finish the boarding school without adding a single bad record.

But at the entrance ceremony, my world suddenly changed. The whole 1st-year student is summoned into a fantasy world in order to defeat the demons and become a hero.

However, why do I want to do that?

What's the benefit? Is it Money? Then how much? Is it Fame? Or just plainly returning home after everything was over?

What about our safety? Is there any insurance?

And what should I care? This isn't my world nor do I have any special bond with this world.