In a world governed by strict bloodlines and magical hierarchy, those born with "bad blood" are outcasts destined for a life of misery. The story follows a protagonist who, despite being branded a failure by birth, awakens a forbidden power that defies the natural order. Forced to survive in a ruthless society that seeks to suppress him, he must carve his own path through blood and steel to prove that destiny is not written in one's veins. This dark fantasy tale is packed with intense action, social rebellion, and a quest for ultimate strength.

Alternative Names: Bad Born Blood, Born of Bad Blood, Mal Sangre, 배드 본 블러드.

Genre: Action, Adventure, Fantasy, Seinen.

Author: Various (Web Novel Adaptation).

Status: Ongoing.