Golden Man (Petos)

The metropolis of liberty, Neo York, faces constant threats from evildoers around the clock, yet it proudly houses the mightiest champion, Golden Man! ! ! However, one evening, while he was engaged in a heroic mission to save lives amidst a blaze at a derelict plant, Golden Man inexplicably vanishes. In his absence remains a lone young man suffering from memory loss, clutching the Golden Man costume. . . Who is this individual?