Demon Slayer: Kimetsu no Yaiba
Season 01
S01E21 - Against Corps Rules
Rui recalls his past; born with a frail body, he was confined indoors at all times. One night, Muzan found and transformed him. His parents discovered he devoured someone and tried to kill him. He kills them both but realized they only acted out of penance. Muzan claims they didn’t love him, driving Rui to be cold and ruthless. He crawls to Tanjiro, who comforts him after sensing his grief. He is reunited with his parents in Hell, where they forgive him. Giyu scolds Tanjiro for showing demons pity but he defends them as tragic creatures. He remembers the siblings from before and defends them from Shinobu. Tanjiro flees with Nezuko but a girl intercepts them and knocks him unconscious, thought she fails to kill Nezuko. A Kasugai Crow calls out that the siblings are to be taken to the Demon Slayer Headquarters, while Inosuke and Zenitsu are taken as well to recover. Tanjiro then awakens to find himself in front of the Hashira.
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