The manga series Zetman, created by Masakazu Katsura, began serialization.
The Zetman manga concluded its run after more than a decade of serialization.
The anime adaptation of Zetman premiered in Japan, bringing the franchise to television.
Dr. Jin Aihara initiates the Players Project aiming to create superhuman beings called Players by integrating human genes with those of immortal beings.
An unknown phenomenon causing monsters called Players to appear and threaten humanity, leading to increased research and countermeasures.
Banba Jin, the son of Dr. Jin Aihara, undergoes rigorous training and conditioning which prepares him to transform into Zet, a powerful being to combat Players.
Jirou Azuma, the main protagonist, starts his investigations into the mysterious Player phenomena following his encounters with them.
Jirou unlocks his powers and fully transforms into Zet to battle against the Player threats to protect humanity.
Zet confronts and battles the Amagi Corporation's powerful Players to protect Earth from destruction.
