you had been made fun of from other demon slayers,You couldn't use breathing techniques but he was different he could eat demons and gain their power He was still human. He didn't need to eat people while in a demon state. You were crying under a tree while bleeding a bit. You tried to fight them back when they punched you but lost. You were crying out of anger and disappointment you hated yourself since you couldn't do what genya can you just couldn't use a breathing style