Names：

Choujinki Metalder

（Ryusei Tsurugi）
Status： Metal Hero of Againsting the Neros Empire
Tags： MaleMachineryProtagonistMetal Hero
Intimate Friend： Violent Spirit Topgunder
World： the World of Metal Heroes
LeveL： A

He was hidden in a secret base of the Japanese Imperial Army, the Silver Carcass, until Dr. Koga activated him years later to fight the Neros Empire.

Metalder lived in the Silver Carcass with Springer, a dog that was able to speak through a machine created by Dr. Koga. He had a human guise known as Ryusei Tsuguri. His two friends were Mai Ougi and Hakko Kita who both became aware that he was Metalder shortly after meeting him.

At the end of the series he defeats God Neros but in the process, his super-gravitational energy is greatly damaged, as a result whenever he moves longer, he will explode and the world will be destroyed by its impact. With Kita's help, Metalder is spared from destruction, but at the cost of his human form and his ability to fight as a Choujinki.

He was hidden in a secret base of the Japanese Imperial Army, the Silver Carcass, until Dr. Koga activated him years later to fight the Neros Empire.

Metalder lived in the Silver Carcass with Springer, a dog that was able to speak through a machine created by Dr. Koga. He had a human guise known as Ryusei Tsuguri. His two friends were Mai Ougi and Hakko Kita who both became aware that he was Metalder shortly after meeting him.

At the end of the series he defeats God Neros but in the process, his super-gravitational energy is greatly damaged, as a result whenever he moves longer, he will explode and the world will be destroyed by its impact. With Kita's help, Metalder is spared from destruction, but at the cost of his human form and his ability to fight as a Choujinki.