Orphaned sisters Kanae and Shinobu ask Himejima to teach them how to slay demons. After he refuses, they must complete the impossible task of moving a giant rock to convince him to introduce them to Trainers. In other tales, Zenitsu tricks Inosuke into helping him dig a hot spring under Uzui's training, Mitsuri grapples with her reason for becoming a Demon Slayer, Genya discusses his family with Sumi, the Hashiras try to make Tomioka smile, and Kimetsu Academy forms a rock band--much to Shinobu's chagrin!