Tbh I kinda get how dabi/toya feels cuz whenever my dad pisses me off I would want to beat my brother up since he's the favorite. It's kinda I was the free trial and my brother is the premium plan since I'm the eldest and he's the only son ( younger). Most of the time, I feel invisible in this family like do I really have to slit my own throat in front of them so they'd notice? Everytime I expressed that I was hurt, my parents would tell me to stop being childish but whenever my brother lashes out or snap at them, they don't really say anything. I wish I could just delete myself if I really meant nothing to the people that gave me life.