In the anime and manga series "Demon Slayer: Kimetsu no Yaiba," the main protagonist Tanjiro Kamado does not become a Pillar. The Pillars, also known as Hashira, are the highest-ranking and most skilled demon slayers within the Demon Slayer Corps. They are tasked with leading and protecting humanity against the threat of demons.

While Tanjiro demonstrates exceptional skill and determination as a demon slayer throughout the series, he does not hold the official rank of a Pillar. However, he forms close bonds with several Pillars and works alongside them to combat the demons and achieve his goals.