|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 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 Corp., the company founded by Kouga’s grandfather, Mitsugai Amagi.|
Jin Kanzaki is the main protagonist of the series Zetman. Due to growing up on the streets, Jin has almost always had a rugged appearance, with unkempt brown hair and torn clothes. However, as he gets older, he improves on this.