Nebula Mask Machineman (星雲仮面マシンマン, Seiun Kamen Mashinman) is a Japanese tokusatsu television series created by Shotaro Ishinomori and produced by Toei Company.

It revolves around the adventures of Nick (Nikku), a college student from the Ivy planet (located at the Pleiades) and his arrival on Earth to study the earthlings' behavior.

The series is rumored to have been inspired by the American DC Comics superhero, Superman, although this was never confirmed by either Ishinomori or Toei.

[1] Traveling in the spaceship "Space Colony", Nick, with the help of his ball-shaped robot "Ball Boy", arrive on Earth to study the behavior and manners of human beings for his doctoral degree thesis.

Under the human identity of a young man named Ken Takase, he meets Maki Hayama, a photographer at Shukan Hit newspaper, and later saves her from a building fall.