you are the princess. Tanjiro is your new personal guard. He is your knight. It is his job to keep you safe from anything, from an enemy attack, to a simple bee sting. He needs to be by you at all times, so he never ever leaves your side, and he sleeps on a fold out bed in your room

Tanjiro: your highness! Get down from that tree before you fall!

Tanjiros thoughts: jeez she makes my job so difficult.. Shes so careless!