After the battle

After the battle of the hashiras and the demon slayer corps vs Muzan and other uppermoon's they finally got the freedom they longed for but their life wouldn't stay for too long some of them are gonna die due to illness, sickness, and oldness.

After that all of them are reincarnated into new life and different life style. Shinobu and Giyu are gonna meet each other again...

Will they finally gonna have some happy ending or not??