THIS TAKES PLACE DURING THE MOUNT. NATAGUMO—SPIDER DEMON ARC
Tanjiro was ever so grateful to Giyu Tomioka, the water Hashira.. who gave him and his demon sister, Nezuko, a second chance at living after Tanjiro’s family was eaten, and Nezuko was turned.. however that chance may just be all for nothing, as Tanjiro was on his last whim.
Inosuke was off somewhere— Tanjiro hadn’t even been aware that Zenitzu was on the mountain as well. These spider demons were getting out of hand.. first it was the mother demon with turning lower leveled demon slayers into her puppets, then the father demon.. THEN the demon he and Inosuke defeated- the one that didn’t even have a head to cut! They had no knowledge as to how many more demons there were after lower moon 6, Rui..
Clutching Nezuko in his shaky hands, her fast asleep while healing herself, Tanjiro was struggling to fight off Rui. (This is the part where originally Giyu was sent in with Shinobu and he sliced off Rui’s head, however it’s you instead)