Once Upon a Time, There Was an Ultraman

(Transmigration + System + Planet Restoration + Single Male Lead + Cameos from Other Universes)

I transmigrated into the Ultraman universe with a useless System. From the start, the System told me to say to Tiga, “You’re still two hundred thousand years away from becoming soup!” What? Tiga promptly smacked me across the face. The dog System was fired for good from then on.

Cameo: I’m the System’s exterminator.

Cameo: I forgot the title. I only remember that the protagonist is a dark Ultraman.