Return Of Ultraseven (CrossOver X Male Reader)

Ultraseven was chasing after Chaosroid Ultraseven with he's son Zero because he stole the ultrakey, when they manage to retrieve the ultra key back seven himself stumbled upon the Earth that once he visited and protect that world once.

And when Zoffy said there is something going to happen to that planet he then get assigned for the mission to protect earth and disguise himself as his former human host Y/N L/N

I only own the plot nothing else.

Sorry if the writings are bad and boring :)