The English name of the anime series Kimetsu no Yaiba: Mugen Ressha is Demon Slayer: Infinity Train. This series follows the story of Tanjiro Kamado, a young man who embarks on a journey to become a demon slayer and save his sister from becoming one of them. He meets other demon slayers along the way and learns how to fight with their help. The show features intense battles, heart-wrenching moments, and an incredible soundtrack that elevates its action sequences. The Infinity Train serves as the setting for much of the story, allowing Tanjiro to travel across Japan in search of powerful demons while also learning more about himself and his newfound skills.