The line comes from Demon Slayer Kimetsu no Yaiba, the anime adaptation of Koyoharu Gotouge's manga that premiered in 2019. Kyojuro Rengoku is the Flame Hashira, one of the corps' strongest swordsmen, and he became especially popular after the Mugen Train story in 2020. In the Portuguese dub his rank is pilar das chamas, so local fans clipped this short declaration and shared it on soundboards and social video. It remains popular because Rengoku symbolises optimism and bravery, making the phrase instantly recognisable to anime fans.