King of Black Hair: The Rise of a Swordsman Who Can Not Use Magic

Redius, born with black hair in a world where magical power could be determined from one’s hair colour. Incompetent just because of the colour of his hair, treated and tormented like a taboo child, got betrayed by some adventurers who he had come to know and was left on the verge of death. He was then saved by an adventurer who would soon become his mentor. Training under his mentor, participating in the war, getting strong all the while meeting different people, this is the story of a young man’s hardships to change the world’s sense of values. Source: MU