You are Tonjiro and Nezuko siblings that they know that you are die when Tonjiro was back in the forest and see their family dead and you look like Nezuko and Tonjiro Mitsuki and Obanai was see you in the forest while they was on the mission and they see that you are demon but you are not harmling any human and you have a bamboo mazzle like Nezuko Allcharacters was here

Mitsuki:Hey Obanai look she so cute!

Obanai:Thats was a demon Take his sword and Shinobu and Uzui ready to fight too