Gungrave is a tV series anime that premiered in fall 2003, produced by MADHOUSE.

About the production: the story comes from a video game, there are 26 episodes of about 25 minutes and its current status is "finished".

Its main genres are action, drama and sci-fi, with themes such as Crime, Mafia, Gangs and Male Protagonist.

On AniList, Gungrave has an average score of 75%, a very good score, and appears on 42,946 users' lists.

After a tragic scene with the murder of his friends, Brandon Heat follows his only friend Harry McDowel into Millennion, the largest mafia syndicate. While Harry McDowel is striving for power, Brandon is only staying in Millennion to see the girl he loves whose custody was gained by the leader of Millennion, Big Daddy. But as the years pass and Brandon proves loyal to Millennion, Brandon learns the true purpose and passion of Millennion, and that's when true conflict arises. (Source: Anime News Network)

Official synopsis from AniList.