Infinite, I rely on training with female characters to become stronger (1-229).

Summary

Wife Zenitsu, in a desperate attempt to lure demons, runs through the woods crying for them to come and eat him. Meanwhile, Dong Fang Shang Can and his companions fend off the demons drawn to Zenitsu's cries. As the final selection continues on Fujisaki Mountain, a notorious figure known as the 'Crimson Sword Demon' arrives, having killed multiple demon slayers. He intimidates two young siblings from the Demon Slayer Corps, Chan Wu Fu Bi Fang and Chan Wu Fu Hui Li Zai, before brutally attacking them and eliminating their means of communication. Fushi-kawa Genya, a unique demon slayer with the ability to consume demons and gain their powers, narrowly escapes an encounter with the Crimson Sword Demon. He warns Dong Fang Shang Can and his group about the threat, prompting them to take action. As tensions rise, Tanjirou and a wild boar-masked boy struggle against the Crimson Sword Demon, who easily overpowers them. Just as despair sets in for Tanjirou, he recalls his training and rallies to fight back, while Dong Fang Shang Can rushes to their aid, preparing to unleash a powerful attack.

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