Kimetsu no Yaiba: Kataha no Chou

Kimetsu no Yaiba: One-Winged Butterfly

Kimetsu no Yaiba: One-Winged Butterfly (鬼滅の刃: 片かた羽はねの蝶ちょう Kimetsu no Yaiba: Katahane no Chō?) is the second light novel series from the Kimetsu no Yaiba (Manga) written by Aya Yajima.