Ruri reveals the origin of the village's name and Senku learns of his father's fate!
Event Year: 2019
A World Without Books
Motosu Urano, a college student and a bookworm of the highest order, loses her life in an avalanche of books and wakes up in another world as a sickly girl named Main. Nevertheless confident that she can deal with any situation as long as she has books to read, she looks all over her new home for one, but doesn't find any. To make matters worse, she couldn't see any writing in town when out with her mother Eva. She realized that she found herself in a world with a low literacy rate, one where books were prohibitively expensive.
Cruelty
It is the Taisho Period (i.e. 1912-1926). Tanjiro Kamado is living a modest but blissful life in the mountains with his family. One day, when he returns from selling charcoal in town, he finds the remains of his slaughtered family in pools of blood after a demon attack. Tanjiro rushes down the snowy mountain with the sole survivor, his sister Nezuko, on his back. But on the way, Nezuko suddenly snarls, turning on Tanjiro.
Deep Sleep
Tanjiro's group, fresh from completing their training at the Butterfly Mansion, head to their next mission, the Mugen Train. There they rendezvous with Rengoku, who arrived ahead of them. Tanjiro is overwhelmed by the always-energetic Rengoku, Zenitsu is frightened by the prospect of facing demons as usual, and Inosuke is immensely excited by the sight of the huge machine. But on this train loaded with passengers, a new battle is about to begin.