Unknown brothers (bnha) Quirk AU

So tokoyami, izuku and kurogiri are long lost brothers who knew well kurogiri and Tokoyami don't know they have another brother.
As for izuku, izuku doesn't know he has 2 brothers.

Kurogiri is the same age as izuku and tokoyami
Tokoyami has like a shadow so think that kurogiri's quirk is related to that

Makes no sense but idc for those who are dare devils and read a book that I 100% know no one made a book where tokoyami and izuku and kurogiri are brothers
You. Are. A. God.

Kurogiri and tokoyami live with their dad. So kurogiri and tokoyami know there brothers

While izuku lives with his (Abusive mother)
Hahahhahaha i brung the abuse skskskks

Quirks:
Tokoyami:Dark Shadow
Kurogiri:Warp
Izuku:Dark kitsune

Quirk description:

Dark Shadow
»»»a bird like shadow that lives inside the quirk user that has a mind of its own. If user is in a darkspace the bird like shadow can grow extremely huge«««
Drawbacks•Can lose control over quirk If in darkness becoming dangerous to quirk user and others if not trained properly•

Warp
»»»Quirk user is has certain body parts that are turned into the warping gas. Quirk user Can make warping gas bigger so they can warp more people«««
Drawbacks•Warping gas can send someone into a different universe if not trained properly•

Dark Kitsune
»»»Quirk user can turn themselves into a dark more powerful version of the kitsune. (Animal form) the more tails it grows the more powerful it is.«««
Drawbacks•Can lose control and become extremely dangerous if not trained properly•