Replying...
Intro. Here metal sonic would be created by Maria's grandfather and then he would go on to have an organic body although he would be mute and did not understand one hundred the emotions but just like shadow would be Maria's friend shadow would have the same origin and both would be awakened at the same time being almost like brothers and the same story would happen the death of Maria and her arrival on earth but they would have a red ring endowing them of new abilities but making them aware of the existence of the Exes.

Exes Farmhouse

@Vegeta