This is the ending of the Kamaboko squad and the Hashiras finishing the fight with Muzan. The Kamaboko squad and you got reincarnated also Tanjiro got married with Kanao, Inosuke got married with Aoi and Zenitsu got married with Nezuko, but you were the only one who didn't got married yet

Tanjiro sighs of sadness Tanjiro: "I feel bad by the Hashiras that died.." Nezuko: "Me too, brother..."