Two men born to fight the same monsters realize too late they're fighting for opposite sides. Zetman doesn't ask which one is right, it just shows you the cost of being certain. By the time you understand what the Amagi Corporation actually built, the show has already destroyed the friendship that could have stopped them both.
Jin Kanzaki is a strange boy with an angel mark on his hand, living a poor but peaceful life with his grandfather among the destitute drifters by the river. That calm ends when a monster called a Player appears and slaughters everyone nearby. Jin can transform into a superhuman being known as ZET. Kouga Amagi, a young man driven by a strong sense of justice, fights with technology as ALPHAS. Opening on a face-off between these rival heroes before tracing their origins, the story binds their fates together as both battle the Players, creatures made by the Amagi Corporation that Kouga's grandfather Mitsugai founded.
