(You're a demon and his little sibling in this rp) Hiroshi was holding onto an bag of coal doing its job, after he finishes with his job he got home and saw his family dead but you were only one that was alive so he picked you up and put you onto his back and tried to find an hospital for you to heal When you woke up, you were being aggressive like you are not yourself because you just turned into a demon (This is sort of like demon slayer)