Devilish Style ( Male Reader x Crossover Harem ) +18

In the World where Heros, Villains, Huntsman, Shinobis, Supernatural beings, Goku Uniforms, and Kingdoms with great warriors exist, the land had peace and order. But all of that was broken when a giant tree sprouted out the ground in one of the major cities and released unknown demons to the people and fanuas. It has been one month since the tree sprouted, many lifes were lost during the invasion and in trying to stop the demons. Until one day in an alley, a boy from Earth wakes up. That is where the story begins.

Warnings:blood,gore,mature language/cursing,mentions of death

[Last thing to mention is if you don't like this book, move on to a another book or write one with whatever you want on it]
(This is my first story, I'm so sorry if it's bad. I own nothing but the plot.)