I Got a Cheat Skill in Another World and Became Unrivaled in The Real World, Too

Searching for Isekai de Cheat Skill wo Te ni Shita Ore wa, Genjitsu Sekai wo mo Musou Suru: Level Up wa Jinsei wo Kaeta? That title and I Got a Cheat Skill in Another World and Became Unrivaled in The Real World, Too point to the same show. It's a TV series across 13 episodes out of Millepensee. It's finished airing, so the whole thing is watchable start to finish.

On the shelf it sits under Action, Adventure, and Fantasy — worth knowing if you're comparing action anime specifically. Looking for something similar? Attack on Titan is the nearest match on the shelf right now.