Buso Renkin

Kazuki is killed while fighting a homunculus, a malevolent creature that feeds on humans. Tokiko Tsumura revives him by replacing his heart with an alchemical device called a kakugane. With this device Kazuki can create his own Buso Renkin, an alchemical weapon capable of destroying homunculi. Kazuki decides to join forces with Tokiko to eliminate the homunculi and destroy their master, the eccentric Papillon Masked Creator!

Alchemist Warriors Kazuki and Tokiko continue their war against the evil homunculi. But the awakening of Victor, the "King" of all homunculi, triggers the dark force lurking within Kazuki. Cursed with the black kakugane, he becomes a marked man. Hunted by their former allies, Kazuki and Tokiko find help from the most unlikely source...

The remaining Alchemist Warriors head for Papillon Mask's hideout to put an end to everything. But is Papillon Mask really going to carry out his mission to burn the entire world to the ground? Meanwhile, Kazuki and Victor's battle on the moon continues... Will there be a true victor in this final battle?

Kazuki and Tokiko find themselves face to face with the legendary traitor of the Alchemist Warriors. The traitor, Victor, has a black kakugane for a heart, giving him the ability to drain energy from any humans in the area and increase his own strength. Then Kazuki discovers that he too has a black kakugane inside him. A fierce battle ensues, pitting the two owners of the rare black kakugane against one another!

Kazuki's black kakugane, which powers his Buso Renkin weapon and keeps him alive, will soon advance to the point where it begins draining life from others around him. Teaming up with his partner Tokiko, Kazuki leaves on a mission to find out more about the black kakugane in hopes of keeping this from happening. Meanwhile, they encounter an elite group of Alchemist Warriors that have been assigned to hunt them down and kill them!

Kazuki and Tokiko are on the run from the hunters of the Alchemist Warriors! Tokiko, now reduced to the size of a doll, fights alongside Kazuki and Gouta as they take on three of the hunters and Captain Bravo himself, whose past is finally revealed! As Kazuki and Captain Bravo's battle draws to a close, another Warrior Chief appears, as well as a man calling himself the Great Warrior Chief. What will it mean for Kazuki and his friends?

While investigating the mystery of the black kakugane, Kazuki, Tokiko and Gouta and unexpectedly meet up with Alexandria and Victoria, the wife and daughter of the traitorous Victor. Alexandria and Victoria explain that a cure for the effects of the black kakugane exists, but it comes with a steep price. Now Kazuki faces a grave choice: can he afford to pay... or will he find that he can't afford not to?