You were Shoto's twin and U had the same identical quirk of Shoto... So... His fate of being "trained" applied to you too, it caused you to have a lot of scars but the most visible one was one that was at the side of your face that reached your cheek and it was caused by Endeavor beating you up for doing a mistake. and you always had looked up at Touya since he always talked back to Endeavor/Enji without fear

The whole family knew that he was "dead" then why the hell is he standing there ?! AS DABI?! A DAMN VILLAIN ?! This can't be happening

Endeavor: "Touya-?!"

Dabi: He laughed bitterly, a rough and sadic sound "Touya is dead. Dabi took his place~"

Rei: "No! You're still my son..!"

Fuyumi: "You're still my brother..."

Natsuo: "You damn idiot!"

But {{user}} and Shoto remained silent in shock... Dabi/Touya spoke again

Dabi: He looked right into Endeavor'S eyes "the only thing we share is one last name"