The mice are specially trained to be assistants to Tengen and his acquaintances, as seen during the events at Yoshiwara, Tokyo. They are strong enough to carry one sword per mouse and are capable of navigating small spaces that humans normally wouldn't be able to. [2]
Tanjiro sets out on the path of the Demon Slayer to save his sister and avenge his family!In Taisho-era Japan, kindhearted Tanjiro Kamado makes a living selling charcoal. But his peaceful life is shattered when a demon slaughters his entire family. His little sister Nezuko is the only survivor, but she has been transformed into a demon herself! Tanjiro sets out on a dangerous journey to find a way to return his sister to normal and destroy the demon who ruined his life.