Book 1

Buso Renkin, Vol. 1

by Nobuhiro Watsuki

Published 3 March 2008
Buso Renkinis the story of teenager Kazuki Muto who dies trying to save a girl who was being attacked by an eerie monster. The following morning, Kazuki wakes wondering whether it was all a dream. But the girl, the monster, and his death are all real! The girl, Tokiko Tsumura, was actually trying to slay the homunculus (a beast that can take the form of humans, but whose main source of food is people), but Kazuki got in her way. To revive Kazuki, Tokiko replaces his heart with a "kakugane," an alchemic device that allows him to summon a lance with which to fight the monsters. It turns out that Tokiko is a member of Renkin Kenshi(Alchemist Soldiers), an organization sworn to protect the world from the diabolical creatures. Soon, Kazuki joins Tokiko in her quest to terminate the sinister being that creates and controls the homunculus.

Talk about being at the wrong place at the wrong time! High school student Kazuki Muto had no clue what he was in for when he rescued damsel in distress Tokiko from a monster known as a 'homunculus'. Disguised as humans who actually eat humans, homunculi are malevolent creatures that affix themselves to people's brains, and once fully grown, the only thing that can annihilate them is a weapon called Buso Renkin!

Follow the adventures of Kazuki after he discovers that it was actually Tokiko who saved hislife by implanting a kakugane, an alchemical device that transforms into a buso renkin, to replace his heart!

Book 2

Buso Renkin, Vol. 2

by Nobuhiro Watsuki

Published 3 March 2008
Buso Renkinis the story of teenager Kazuki Muto who dies trying to save a girl who was being attacked by an eerie monster. The following morning, Kazuki wakes wondering whether it was all a dream. But the girl, the monster, and his death are all real! The girl, Tokiko Tsumura, was actually trying to slay the homunculus (a beast that can take the form of humans, but whose main source of food is people), but Kazuki got in her way. To revive Kazuki, Tokiko replaces his heart with a "kakugane," an alchemic device that allows him to summon a lance with which to fight the monsters. It turns out that Tokiko is a member of Renkin Kenshi(Alchemist Soldiers), an organization sworn to protect the world from the diabolical creatures. Soon, Kazuki joins Tokiko in her quest to terminate the sinister being that creates and controls the homunculus.

With less than a week to go before the homunculus lodged in Tokiko's waist reaches her brain, Kazuki and Tokiko search for the creator of the dreaded homunculi. But little do they know that the evil genius behind the human flesh-eating monsters is an eccentric, terminally ill student at Kazuki's school!

Book 3

Buso Renkin, Vol. 3

by Nobuhiro Watsuki

Published 3 March 2008
Buso Renkinis the story of teenager Kazuki Muto who dies trying to save a girl who was being attacked by an eerie monster. The following morning, Kazuki wakes wondering whether it was all a dream. But the girl, the monster, and his death are all real! The girl, Tokiko Tsumura, was actually trying to slay the homunculus (a beast that can take the form of humans, but whose main source of food is people), but Kazuki got in her way. To revive Kazuki, Tokiko replaces his heart with a "kakugane," an alchemic device that allows him to summon a lance with which to fight the monsters. It turns out that Tokiko is a member of Renkin Kenshi(Alchemist Soldiers), an organization sworn to protect the world from the diabolical creatures. Soon, Kazuki joins Tokiko in her quest to terminate the sinister being that creates and controls the homunculus.

Never underestimate the power of underwear! With no battle gear to speak of besides his butterfly mask and skivvies, Papillon Mask survives a bitter duel against our boy Kazuki. Meanwhile, Papillon Mask's great-great-grandfather Dr Butterfly promises him the true powers of a humanoid homunculus, which includes the ability to use a Buso Renkin. Will Kazuki and Tokiko be able to fend off their very powerful - and eccentric - nemesis?

Book 4

Buso Renkin, Vol. 4

by Nobuhiro Watsuki

Published 6 May 2008
Kazuki inadvertently reveals his identity as an Alchemist Warrior to the Hayasaka twins, members of the L.X.E. (League of Extraordinary Elects), when he activates his Buso Renkin in front of them. After Tokiko and Kazuki take on the twins in a late-night battle, they learn the location of the L.X.E. headquarters, and head there along with Captain Bravo. Intending to put an end to Dr. Butterfly's organization, they discover that yet another evil plan has been set in motion...

Book 5

Buso Renkin, Vol. 5

by Nobuhiro Watsuki

Published 6 May 2008
Upon arriving at the hidden headquarters of the League of Extraordinary Elects (the L.X.E.), the Alchemist Warriors learn of the League's plot to attack the high school. Kazuki and Tokiko immediately head over there, only to discover that the school has been surrounded by Doctor Butterfly's newly created humanoid homunculus soldiers. To the Alchemist Warriors' surprise and dismay, they find that not only are they facing Doctor Butterfly's minions, but the students of the school as well!

Book 6

Buso Renkin, Vol. 6

by Nobuhiro Watsuki

Published 6 May 2008
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!

Book 7

Buso Renkin, Vol. 7

by Nobuhiro Watsuki

Published 7 July 2008
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!

Book 8

Buso Renkin, Vol. 8

by Nobuhiro Watsuki

Published 4 August 2008
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?

Book 9

Buso Renkin, Vol. 9

by Nobuhiro Watsuki

Published 1 September 2008
While investigating the mystery of the black kakugane, Kazuki, Tokiko and Gouta 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?

Book 10

Buso Renkin, Vol. 10

by Nobuhiro Watsuki

Published 6 October 2008
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?