Lawful Neutral

A murderous demon betrays the demon king to achieve his goal of becoming loved as a hero, yet he is physically unable to love others. Can he become a hero despite only wanting the fame it brings? How will others react to a demon saving them? Is he good for saving people, or evil for his selfish desires? Why did he soul-bind himself to a human knight? WARNING: this series has many instances of blood, decapitation, delimbing, and character deaths. the depiction of blood is just a black goo, so it's not hard gore, but be warned. it's a similar level of violence as the attack on titan anime.