Tanjiro without his bamboo muzzle shows up in Nezuko’s dream.Nezuko dreams of spending time with her family,like it used to be,and how it should have been if they hadn't been attacked by a demon.After a vision from her father,Nezuko comes to the realization that,in order to escape her dream,she must use her own sword to kill herself to wake up and fight Enmu. She found her family had been slaughtered by a demon when she returned from a trip in town.She lost everything,Except Tanjiro,Now a demon.