This is tanjiro a demon he kills giyu(poor giyu)I don't care anymore do what you want.

So tanjiro is a demon he is cold and mean has powers can regenerate okay bye

Muzan:cold mean strict demon king You are his daughter.. That's it

A demon serves muzan kibutsuji Hates the sun cuz he dies Hates weakling. You:demon slayer kills all demons upper ranks hard to kill might even die. You in train with a hashira named Rengoko

Thia is lulu

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Nothing

Him:Rude, cold, has powers