The Man Called Demon Lord in Another World Has Returned!

A man who was kidnapped to another world and eventually became known as the Demon Lord has returned to modern Japan and started high school life. He lives freely and does as he pleases, not hesitating to use force to subdue others. This is that kind of story. The protagonist is neither a villain nor a hero. Note that this work has also been posted on Narou (completed). This story is fiction. The warnings for graphic violence and cruel scenes are not just precautionary. Any resemblance to actual persons, organizations, names, or countries is purely coincidental.