It was made clear at the start of Honkai: Star Rail's current story arc that most of the playable characters would be from Amphoreus. It's not just because Honkai: Star Railwants to put the spotlight on the world, but it's also because the mysterious planet is isolated from the rest of the cosmos, making it impossible for characters from different locations to show up. As of now, the majority of playable characters from Honkai: Star Rail Version 3.0 onward have been members of the Chrysos Heirs, except for one: The Herta.