After more than a decade of constant discussion, it can be hard to accept that Attack on Titan seems to be completely done by this point. Debuting in 2009, Hajime Isayama's shonen manga concluded its run in 2021, producing 34 volumes and 139 chapters in the process. The series spawned five manga spin-offs: Junior High, Before the Fall, No Regrets, Spoof on Titan, and Lost Girls. Combined, these stories lasted for 35 volumes and 170 chapters. Unsurprisingly, the source material's success led to the creation of an anime, which lasted for four seasons and 94 episodes.