Honkai: Star Rail, I Can Transform into a Female Heroic Spirit!?

A truck, a phone, me. In the Honkai: Star Rail world, I become a cat guest with a System. Clones, transformations, and great achievements: that's me. And next come all sorts of different versions of me: the absolute genius of Erudition, the Trailblazer of the stars + the flawless person of Preservation, the guardian of the holy city + the undying flame of the Hunt, the one who burns away injustice + Dark Jean...