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ZETMAN (ゼットマン)

ZETMAN series started in Young Jump in 2002

The story starts off with a face-off between two rival heroes, ZET and Alphas, and then traces their origins - Jin Kanzaki, a young man born/created with the ability to transform into a superhuman being known as ZET, and Kouga Amagi, a young man with a strong sense of justice who uses technology to fight as Alphas.


The fates of these two men and those around them intertwine as they fight to protect mankind and destroy monstrous abominations known as Players, who ironically are the creations of the Amagi Corporation, the company founded by Kouga's grandfather, Mitsugai Amagi

The main protagonist. A mysterious young man bearing a circular lump on the back of his left hand, Jin was a result of the Z.E.T. Project by the Amagi Corporation to create the perfect being to fight and destroy the escaped Players. He was however released by Gorou Kanzaki, who wanted nothing more for Jin than to grow up as a normal human. After the death of his 'grandfather', Kanzaki, Jin stayed with Akemi Kawakami until he witnessed her 'death' under the hands of the Amagi Corp., in an effort to retrieve their creation. He has been living in a slum alone ever since, monitored closely by his creators, especially Mitsugai.


Jin is able to transform a creature known as "ZET", a mutant possessing superhuman abilities, but often mistaken for another Player. The transformation is slow, though it may be accelerated due to extreme rage and conditions. He had lost this ability briefly, but regained it with the use of a special gum. The source of his strength appears to be the mysterious lump on his hand.

Konoha's elder brother, and grandson of Mitsugai Amagi. Both academically and sports-inclined, especially soccer. Due to his attraction to an anime 'Ginga Choujin Alphas', Kouga has developed a strong sense of justice since young. Urged by his encounter with Jin during a fire accident (caused by a Player) to become a hero of justice. He had been depending on a trio of researchers since middle school for gadgets which could assist him in his escapades. Lost his right forearm during his captivity by a bitter ex-researcher of Amagi, Jirou, together with his sense of justice. He is then fitted with a smart prosthetic arm, which required several months of rehabilitation.


During this time, Kouga regains his composure, and after learning about the Players and his grandfather's involvement in the project, he initiates the Alphas Project with the Trio, who created a high-performance combat body suit resembling Kouga's childhood hero, complete with high-tech weaponry and gadgets, to combat his grandfather's creations. Very protective of his family, especially his sister, Konoha.

Sister to Kouga and granddaughter of Mitsugai. Bears a distinct dislike to her grandfather due to childhood trauma. Konoha first met Jin during her secret volunteer work with her mother when they were still small, and has been harboring feeling for him ever since. Addressed Jin as 'Tenshi-kun/Mr. Angel' after seeing him fall from the sky to her aid when she was bullied by a group of hooligans (Jin's friends), and only learns Jin's name after.





Founder of, and ex-CEO of the Amagi Corporation. Believed in a distinct divide between the rich and the poor.

In the pursue of his dream to create the perfect artificial humans, he initiated N.E.T. Project, but it eventually led to the escape of his creations, named 'Players'. Having a heavy sense of responsibility for the incident, Mitsugai then commenced Z.E.T. Project to set things right, though again his plans were foiled by the betrayal of Kanzaki. Became hell-bent on retrieving ZET back after countless failures to create a new one.

The Sweeper Little is known about him except for his appearances to kill off defective Players. He also shows some interest in ZET and wishes to fight with him(chapter 70). As the story develops, there is known to have more than one sweeper, and Jin/ZET is now known as "the Black Sweeper"(Chapter 88).


Players Creatures that were created as an intent to create artificial humans. The project became more than just to create the perfect artificial human, it became more of a hobby for the rich men to buy and own them and do whatever they wished to do with them, including gambling as they pit their own monsters to fight.It went on until the players finally gained awareness and killed off everyone in sight. Because of this, many players feel that humans mistreated them and that they are far superior and deserve better.


Evol Similar to players but a higher ranked class. They follow rules and avoid needless killing, and do not meltdown so easily like other players. They would also be known as non-defective players. Most evol take pride on their rank and are offended if they are ever called or mistaken as players. Evol is also the name of a club along the storyline, it is build specifically for players who disguise themselves as humans within society. Evol could also mean the player organization.