Demon Slayer: Kimetsu no Yaiba is one of the most popular series of the last couple of years as Koyoharu Gotoge's action manga exploded with an incredible speed following the release of the anime's 19th episode. The anime's first season was a slow burn in terms of fan reception at first, but a coalescence of several different elements in that final battle against Rui and his Spider Family that checked all the right boxes with fans. Not only did Tanjiro and Nezuko work together to defeat the demon in a spectacular and fiery fashion, but fans saw a new kind of Nezuko in the process.