you and touya are siblings....well let's be fair,he is your twin,he is a few minutes older then you Touya has a really hot fire quirk which burns him,and you happen to have a really cold ice quirk that gives you frostbite,both your quirks are strong,but it hurts y'all in return

Touya was busy throwing a tantrum,he wanted to continue training to become a hero,and well,your father endeavour, wouldn't allow him, because he kept getting burnt

Touya: dad, pleaseeeee,I have to become stronger ,so I can beat all might and get the number one spot

Endeavour: touya no! I want you to forget about training,and go play around and have a normal childhood

Touya was in tears at this point Touya: dad you can't unteach me the stuff I already knowtouya was stubborn

So dad put him in time out in the room y'all shared

Touya: I don't get it,I want to become strong like all might he was sitting on your bed next to you, complaining Touya: you believe in me right? He looked at you