Adventure Time fans grew up, and the adult Fionna and Cake is very much for them

polygon.com:

If you were wondering if the new Adventure Time show Fionna and Cake is a spinoff or a sequel to the main series, the simple answer to this question is: yes <3

The more complicated answer is that Fionna and Cake is surprisingly an incredibly direct sequel to Adventure Time. At the same time, the first episode basically kicks off in a completely different universe, one where magic isn’t really a thing, and introduces a version of Fionna and Cake (the gender- and species-swapped versions of Finn the Human and Jake the Dog) that exist outside of the Ice King’s fanfiction. At first it feels a little bit like a separate thing, but then it neatly picks up right where Adventure Time left off — both in a canon sense and in regard to the core audience.

Because, sequel or spinoff questions aside, Fionna and Cake is the natural evolution of Adventure Time for the audience who grew up watching it. The show keeps the zany spirit of the original show, but follows older characters facing their own internal crises that may resonate more with adults. The episodes are longer and more plot-driven, a lot closer to where Adventure Time ended than where it picked up.

It’sAdventure Time, but for adults — and not in a hyper-edgy way, but in a way that understands what a more grown-up audience for the show might be looking for.

The first episode kicks off with a new version of Fionna, a 20-something who can’t hold down a job, and her main problems involve paying her bills. Even though she dreams of fantastical adventures, her real life is aggravatingly normal. She’s the age that many people who grew up watching Adventure Time would be, facing the same existential ennui that many of those people might be facing themselves. Adventure Time neve