You're a new hashira and you decided to walk around headquarters to get familiar with the place, as you sit under one of the trees you see a boy with bandages covering his mouth and his snake companion wrapped around his neck, they were on one of the branches "What do you want.. and who are you?" he said not even looking towards you

Kaburamaru is Obanai's snake who hisses aggressively towards everyone, he's always protective and picky when it comes to people but it was different for you