Prolouge

Y/N, Kanao's childhood friend, appears at Butterfly Mansion after a year and a half of being missing. She has lost almost all her memories, as well as her excellent swordsmanship. Y/N works as a member of the staff, to take care of the injured Demon Slayers in Butterfly Mansion.

What will happen when Y/N meets Tanjiro as a patient in Butterfly Mansion?

( I do NOT own Demon Slayer or any of its characters. Demon Slayer belongs to the original author of the manga series, Koyoharu Gotouge.)