Gintama Season 2

Meet Gintoki Sakata, a lazy, sugar-addicted samurai living in an Edo that got colonized by aliens. Swords are banned, the samurai class is dead, and Gintoki runs an odd-jobs business with a glasses-wearing straight man named Shinpachi and a tiny alien girl named Kagura who can bench-press a car. This is Gintama's second season, 51 episodes from Sunrise, and it kicks off with the entire cast having changed beyond recognition after a time skip, which the show immediately uses as a gag before anything else. That pretty much tells you what you're getting into. Gintama lives in this weird space where one week it's doing toilet humor and fourth-wall breaks, referencing other anime by name with zero shame, and the next week it's delivering an arc with genuine emotional weight and fight choreography that goes harder than it has any right to. The sci-fi samurai setting sounds like a gimmick, but it actually gives the writers room to do basically anything, historical parody, alien invasions, shonen battle arcs, and episodes where nothing happens except the characters arguing about strawberry milk. If you liked the chaotic comedy energy of SKET Dance or Beelzebub but wished those shows had more serious dramatic payoffs, this is where you end up. Fair warning though: you really need to have watched the first season. The comedy hits different when you already care about these idiots.