Weboriginally a sickly child who was transformed into a demon by muzan kibutsuji, rui killed his parents after they decided to kill him for harming others. Driven by guilt over the. Webone night, rui was approached by muzan kibutsuji who then offered to save him and transformed him into a demon. Now possessing a strong body rui was finally able to. Webone fateful night, muzan kibutsuji approached rui with an offer to “save” him by transforming him into a demon. As though bound by some spell, he accepted the offer. Webone night, rui was approached by muzan kibutsuji, who offered to save him and transformed the boy into a demon. Now possessing a strong body, rui was finally. Weboriginally a sickly child who was transformed into a demon by muzan so that he could obtain a strong and healthy body, rui murdered his parents after they reluctantly. How did rui become a demon? When we first meet rui his story begins in despair, as he was once a human enduring a tragic. Webdespite his monstrous exterior, rui’s story evokes a sense of sympathy, shedding light on the tragic consequences of his transformation into a demon.
