Tetsuo: the Bullet Man

Overview

Anthony is a man with an American father and a deceased Japanese mother living and working in Tokyo. One day his son is run over and killed by Yatsu, the "The Metal Fetishist". Shortly afterward Anthony begins to transform into metal. He discovers that the work of his scientist father may be the key to his transformation. In his father's house he discovers a secret room with files and papers detailing the Tetsuo Project as a way to turn people into androids.

Source: AniList