In Demon Slayer, Kyojuro Rengoku is that sort of character that is so unforgettable despite having only one major arc..

10; "Kikai Shikake no Sanka" ep. 12), Theme Song Performance (as Chat Noir; OP; ED5-7) Re:Stage! Dream Days (TV): Theme Song Performance (OP; as KiRaRe) (The) Reincarnation of the Strongest ...