Based on the information that I got from both Krestan and Saintess Aria, I can conclude that the Gods and Goddesses are really not originally from Orion. There's a possibility that when the supernova happened on the dying star of Betelgeuse, the first thing that it created was Amruchis. It could be that Amruchis, Gods, and Goddesses were inside of the dying star the whole time, that might be the reason why they have the same energy as the [Star Core] since they live inside a giant sun.
If Betelgeuse isn't a being but a phenomenon itself, then I can say that Betelgeuse is the system of the game and Sev is the messenger of Betelgeuse. There are so many questions that pop out in my head, and because of that, I'm starting to want to know more about Betelgeuse and how everything started.