Demon Slayer: Kimetsu no Yaiba : Season 2

The story follows by the animated movie Infinity Train. Drafted by Tengen Uzui, the Sound Hashira, Tanjiro and his friends help investigate the red-light district in Yoshiwara, Tokyo, where Daki, one of the Upper Ranks, has established herself while disguising herself as an oiran. Once learning Daki's secret, they are forced to confront not one, but two enemies, as she shares her body and the position of Upper Rank Six with her brother, Gyutaro.