Baby, I wasn't there (Eternity's without you.)

KIMITSU NO YAIBA: (嗒)forgotten slayers AU
In this Au the Hashira and slayers (including Nezuko and Tanjiro) failed to attack Muzan resulting in his escape. most the slayers and hashira are critically injured but healing well. the remaining Hashiras where left devastated after the death of Kagaya, and are now in the hands of his eldest son (Kiria) who is now the leader of the corps. All slayers and Hashiras have fallen into a Depression due to the failure of the corps. (Post battle) Yet they continue to fight till the very end of their lives.