Ultraman: I'm a Stickler for Rules, So Why Make Me Fight Monsters?

[Partly Comedic + Slow-Burn + No System + No Female Lead + Plot-Focused + Not Invincible + Transmigration Across Multiple Worlds]

I was cleaning the house when I unexpectedly transmigrated to this strange world. Then, while buying something at a gas station, I ran into a weird, disgusting monster.

That thing looked so revolting, I seriously didn’t dare to fight it. Just as I ran out onto the road, a silver Ultraman suddenly appeared and punched the monster to pieces.

Oh my god, blood splattered everywhere. It was so gross, I nearly lost heart...