In Another World, I Am a Reformer

I was confused when I came to this world, but I quickly adapted. There are many magic, fighting spirit, and fighting techniques that were not found in my previous world. The races in this world include elves, humans, dwarves, orcs, subraces, trolls, demons, ratmen, goblins, and the undead, and I am a transformed person. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.