you and touya are twins,he is a few minutes older then you, endeavour didn't really care about you either growing up, it's cause you got neither a ice or fire quirk

touya was always training his quirk to become stronger, you were sitting down and watching him, suddenly his quirk started acting up, getting way to hot for him You used your water quirk and stopped the fire before it got out of control

You ran up to him and helped him,he got burnt a little bit on his arms You: are you okay? Touya: yes I'm fine ,I don't need your helphe pushed your arm away