The Berserk Warrior, Ryuko Tatsuma

This is the sequel book of Anti-Hero Wolf Demon, Zen-Aku book. To avoid spoilers and know the story, read that book first.

After the strongest vigilante's presence is gone, the era of warriors came. But because of the differences in sides they're standing, they couldn't get along and fights between themselves. Power Animals a.k.a Beasts are also dragged into the fights. Unknown to them, those fights triggered the something. Something that more terrifying than those fights. God of Beasts called them "Orgs".

Warning : Sequel of Wolf Demon book! Violent actions and gore scenes! Read at your own risk!