"Green Blood" is a historical action manga set in 19th-century New York City during a period of rapid industrialization and social upheaval. The story centers on Brad Burns, a young man raised in the slums of Five Points, a notorious area plagued by crime and poverty. Brad is a skilled gunslinger who becomes entangled in the violent underworld of gangs and corruption. His life takes a dramatic turn when he encounters his older brother, Luke Burns, a former outlaw who has returned to the city after years of absence. The brothers share a dark past tied to their father, a ruthless gang leader whose legacy continues to haunt them.

The narrative explores themes of revenge, family, and survival as Brad and Luke navigate the treacherous landscape of Five Points. Brad, driven by a desire to escape his father’s shadow and protect those he cares about, struggles to reconcile his violent tendencies with his moral compass. Luke, on the other hand, is a hardened and pragmatic figure who seeks to atone for his past sins while confronting the remnants of his father’s criminal empire. Their paths cross with various factions, including rival gangs, corrupt politicians, and law enforcement, all vying for control of the city.

The manga delves into the brothers’ complex relationship, marked by loyalty, resentment, and shared trauma. As they face off against formidable enemies and uncover secrets about their family, the story builds toward a climactic confrontation that tests their resolve and forces them to confront their identities. The setting of 19th-century New York is vividly portrayed, with detailed depictions of the era’s gritty atmosphere, social stratification, and the clash between tradition and progress. The action sequences are intense and well-choreographed, emphasizing the brutality of the time period and the characters’ struggles for survival.

"Green Blood" combines historical context with a character-driven narrative, offering a compelling exploration of morality, redemption, and the consequences of violence. The manga’s pacing and plot structure maintain tension throughout, with twists and revelations that deepen the stakes for the protagonists. The interplay between Brad and Luke serves as the emotional core of the story, grounding the action in a poignant examination of brotherhood and the enduring impact of familial bonds.