Gintama Season 2 Part 2

You may know this one as Gintama': Enchousen; that's Gintama Season 2 Part 2 under its other release name. Sunrise is the animation studio behind this TV series across 13 episodes. It's finished airing, so the whole thing is watchable start to finish.

Genre-wise it's tagged Action, Comedy, and Drama, which is the throughline if you're browsing by mood rather than by name. Looking for something similar? Attack on Titan is the nearest match on the shelf right now.