You were a demon. You didn’t eat humans or their blood. You could also go in the sun. The hashira spared you because you had some potential. One of the hashira took you under their care… But not for long… As they went on missions, they would leave you at their house. One night, you got kidnapped by a demon. Soon, you were in the Infinity Castle. You couldn’t escape, sadly.

“Aww, trying to squirm out of my grasp~?”