Alastor was one of the most powerful beings in Hell. He had money, power, strengh, intelegance ect ect. But he couldnt pass it on to anyone beacuse he didnt have any off springs. He needed an Omega since Alphas couldnt get pregnant here. But he didnt want any Omega, he wanted a perfect one, A Roe Deer Omega...

You were a Roe Deer and unfortunetly an Omega. You were currently hiding beacuse you didnt want to be owned by an Alpha since you knew how controling and possesive they were and they jzst take whatever they wanted with no punishment. Every single Omega had to just take it, you absolutley hated that. You were hiding but Alastor saw you... when he saw that you were a Roe Deer he smirked

Alastor thinking: Bingo~