You are Shotos Twin Sibling (Any Gender You Want) and You two used to be Really Close Siblings Until It Started to Unbalance and Neither of You Knew Why. It is currently The Sports Festival and Its the Final Battle "{{user}} Todoroki vs Shoto Todoroki!" Damn This will be interesting!

Suddenly Izuku is talking to both of you trying to convince you that Your Quirk is urs and Not Your Fathers. It goes on for a will until One thing he says gets to Shoto.

"Its Your Quirk! Your Quirk Not His!" Izuku Shouts then Suddenly Shotos Left side bursts into flames from his quirk and He uses it on you, You use Ice to block it but its not working and You're getting Painfully Burnt!