Before Tanjiro's day, the demon slayers were swept back to Honshu, leaving the subhuman to run free, and Ubuyashiki's reputation shattered. Loveless, embittered, and awkward at forty-nine, the Hashira Tetsuo Morinaga sees a chance to remark on his life, and he embarks on the dog's quest of leading a revolution in the corps. The tale of the man with the heart of sun and steel.

When the world took Ubuyashiki Kagaya and Shinobu Kochou was next, she hands her fellow Hashira and longtime friend Giyuu Tomioka a memoir detailing her dearest feelings and memories, and a lifetime of remembrance is ignited. An interpretation of Giyuu's life from start to end; a story about the woes and romances of a boy and the girl he never wanted to love. [Manga Spoilers]

Standing before the estate of Ubuyashiki Kagaya, Insect Hashira Shinobu Kochou hands her fellow Demon Slayer and longtime friend Giyuu Tomioka a memoir detailing her most precious feelings and memories, and a lifetime of remembrance is ignited. An interpretation of Giyuu's past; a story about the woes and romances of a boy and the girl he never wanted to love. [Manga Spoilers]