Demon Slayer-The Forgotten Strongest-Fan Arc

Tanjro and his friends are sent on a special mission by the Masters crow. They are to recruit a special swordsman to help with Hashira training. The final battle with Muzan was upcoming very soon and this swordsman was the top Hashira long ago. Now he lives in peace in the Wood village. A demon infested village where humans at night are taken hostage. It is up to Tanjiro and his friends to save the people of the village and recruit Asai Hideki.