Brandon Heat and Harry MacDowel had an unbreakable bond, as close as any blood brothers. Their world was simple and carefree, filled with minor brawls, seduction, and petty crimes to pass the time. They believed that the joy they found was fleeting. But everything changed when they were recruited by Millennion, the most powerful mafia syndicate in their area. Harry dreamed of climbing the ranks to become Big Daddy's successor, while Brandon wanted to support his friend and gain the favor of the man who had taken his lover under his wing. Gungrave, inspired by the popular third-person shooter video game, tells a story of loyalty, betrayal, and greed spanning decades. The story delves deeper into its characters, building tension up to the thrilling finale foreshadowed from the start.