Rengoku is Kyojuro Rengoku, the Flame Hashira from Demon Slayer: Kimetsu no Yaiba, the manga and anime series that became a global hit after its 2019 anime debut. The odeio pobre line circulates as a Portuguese meme version shared in short fan edits and soundboards, where familiar anime voices are repurposed for blunt jokes. Its spread follows Brazilian anime meme culture, where dubbed and edited clips are reused as instant reactions, and its brevity keeps it popular for edits, chats and video punchlines.