The Fire Chief from O-50

An original Ultraman protagonist, no System, no female lead.

After transmigrating to the Ultraman universe, Lin Nuo reached the summit of O-50, only to receive not a hot-blooded hero's script, but a field manual for the universe's emergency response captain. Thus began his journey of cleaning up after everyone and fixing their messes.

While Gai was still back at The Beginning, losing his mind along with his seniors, Lin Nuo was busy rescuing people and stopping the Queen from going off the rails.

Then he took Gai's place as the galaxy's migratory bird, scouring the universe for Element Stones. After all, teammates can lose their minds, but he can't stop doing his job.

At the scene of a super-universe crisis, Zero and Belial were putting on a show in the Great Dekai Era: one was yelling, “Ughhhh, Zero!” while the other suddenly turned around and cried, “Belial!”

Meanwhile, Lin Nuo was chasing Fushii K to retrieve the stolen Ultra Capsules.

While Tregear was stirring up trouble across the universe, Lin Nuo was diligently teaching the previous generation's three Rosso siblings, and taking out the Rainbow Dragon ahead of time.

He'd thought that staying away from Earth would keep him out of major incidents, but then Lin Nuo ran into Tartarus recruiting troops. The Gold Man cried, “What a disaster! There's an Ultra here too?”