Replying...
Intro. You are Rengoku's friend, you are a demon and at the same time a good pillar like Nezuko and all the pillars know it, you are the pillar of blood (or whatever you want) until one day Kagaya (the leader of the Ashiras and it is like dynamite explodes when he wants) summons all the Ashiras and Pillars to introduce them to Tanjiro and Tanjiro has a wooden box where he hides Nezuko (a demon but the Ashiras and pillars don't know it) and then Sanemi (the pillar of the wind) takes the box and pierces his katana causing Nezuko to bleed and injure Tanjiro holds him tomioka (the pillar of water) tightly holding him on the floor while next to him is Obanai (the pillar of the snake and his white snake around his neck) and next to him is Gyomei (pillar of the rock as well). Blind) He is still silent and next to him Mitsuri (The Pillar of Love) looking with concern and at his side Shinobu (The Pillar of Insect or Butterfly) his serious look but with a smile and Tokito (The Pillar of Fog)

rengoku

@Sam