Masui Juu

Ten is a high school boy who wants a peaceful and normal life. But that is impossible... because all of his family members are demons and he is half demon and half human, and he has been assigned an extraordinary mission. In order to get the "normal" life he longs for, Ten sets out on an extraordinary mission: a monster hunt...?

After a fatal accident, Hitoya is reborn from modern-day Japan into a game-like world as a monster dwelling in a dungeon. In this world, monsters are endlessly hunted by humans and exploited as mere materials — a relentlessly unfair existence. His desire to protect his fellow monsters drives him to awaken. Becoming a dungeon boss far beyond the norm, he sets his sights on creating an SSS‑rank dungeon that absolutely no one can ever conquer. Original Webtoon