One of the best characters in Demon Slayer/kny, he is very kind and willing to sacrifice his lives for others and constantly risks it slaying demons. He is the flame pillar and I love him so much- uh I mean he's prettypopular and people seem to like him
Rengoku donut is a way of making fun of Rengoku from Kimetsu no Yaiba/Demon slayer since he got punched in the heart by Akaza, and it left a round hole like a donut
Someone:OMG I CRIED SO MUCH WHEN RENGOKU DIED😭. Someone's freind: RENGOKU DONUT LOL🤪. someone: FUCK YOU