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

Summary

Hu Die Ren and her sister share a close bond, which leaves Dong Fang Shang Can feeling a bit out of place. Li Ya, seeking affection, cuddles with him, leading to a humorous misunderstanding when she playfully bites his neck, thinking it was part of a game. After a month of demon-slaying and training, Dong Fang Shang Can receives news about the "Infinity Train Incident," where a group of Demon Slayer Corps swordsmen has perished. Eager to join the mission, he plans to act alone to take down the Twelve Kizuki. As the train departs, Tanjirou and his friends inadvertently board, complicating the situation. Meanwhile, Dong Fang Shang Can chases the train, ready to confront Lower Moon One, Nightmare, who has merged with it, aiming to avoid drawing attention from Muzan Kibutsuji.

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