"Garō Densetsu: Senritsu no Maōgai" is a manga series that expands on the lore of the "Fatal Fury" fighting game franchise, known in Japan as "Garō Densetsu." The story is set in the fictional city of South Town, a place rife with crime, corruption, and martial arts tournaments. The narrative centers on Terry Bogard, a skilled fighter seeking vengeance for the murder of his adoptive father, Jeff Bogard, by the crime lord Geese Howard. Alongside his younger brother Andy and their friend Joe Higashi, Terry trains rigorously to master the art of fighting and confront Geese.

The plot delves into the origins of the Bogard brothers, exploring their childhood under Jeff's guidance and the tragic events that shaped their paths. Terry's journey is marked by his participation in the King of Fighters tournament, a high-stakes competition organized by Geese to assert his dominance over South Town. The tournament serves as a battleground for rival fighters, each with their own motivations and backstories, adding depth to the overarching conflict.

Key characters include Geese Howard, a ruthless and calculating antagonist with ambitions of power and control. His influence extends beyond the tournament, as he manipulates events to maintain his grip on South Town. Tung Fu Rue, a wise and experienced martial artist, plays a pivotal role as a mentor to Terry and Andy, imparting crucial techniques and wisdom. Other notable fighters, such as the Muay Thai expert Joe Higashi and the mysterious Mai Shiranui, contribute to the dynamic and interconnected narrative.

The manga explores themes of revenge, loyalty, and the pursuit of strength, interwoven with intense martial arts battles and strategic confrontations. The story builds toward a climactic showdown between Terry and Geese, where the stakes are not only personal but also tied to the fate of South Town itself. The series captures the essence of the "Fatal Fury" universe, blending action, drama, and character development in a way that appeals to fans of the franchise and newcomers alike.