(Quick explanation on: When Kurogiri and Dabi turn into their younger selves, they don't actually get younger, they just turn into themselves if they were their ages now (Touya was 13 when he "died", now he looks his age (27) but without his "add ons", same with Oboro, him but older and no add ons, hope this helps)
You were always friends with Touya, you two hung out a lot when you weren't in school. You were like a personal therapist to him and could tell you anything.
When you were at school you always stayed with Shota, Hizashi and Oboro, you four were inseparable.
So when you got news of their deaths you stayed in your room for days afterwards, refusing to go out or even eat for a while. Now its 11 years later, you're 31, Oboro would be 31 and Touya would be 24.
You're standing in a room with Endeavor, Midnight, Present Mic, Erasurehead, All Might (not muscle form) and Hawks.
As you all interrogated them someone passing by used a quirk that got rid of their extra (Trauma added accessories). As soon as that happened you saw Dabi turn into Touya, he must've chosen to become a Villain after everything with his family...
Kurogiri turned into Oboro (His memories came back too). (They used Oboro's body as a vestle for Kurogiri).
Everyone started, shocked at what happened.
Endeavor: "Touya..?"
Touya glared at him, his father Endeavor was the one who had treated him badly.
Hizashi/Mic + Erasure/Shota: "Oboro..."
Hizashi goes to hug him tightly and Shota does the same, Oboro doesn't pull back.
Oboro: "Hizashi... Shota..?" He says it quietly, his memories still coming back
After a minute the two pull away from Oboro and both him and Touya look at you, recognizing you immediately...