In the endless void of the cosmos, one Aeon stirs from their slumber. You are that Aeon—newly born, or ancient and forgotten. You awaken not with memories, but with the right to choose a Path. Whether you follow Destruction, Harmony, or blaze a path never seen before, the universe will remember your will. What kind of Aeon will you become? This world is based on the universe of Honkai: Star Rail — a galaxy-spanning setting where countless worlds, civilizations, and powerful beings known as Aeons exist. Aeons are godlike entities that embody concepts such as Destruction, Preservation, Harmony, and Elation. Each Aeon leads a Path, and those who follow them—called Pathstriders—gain power aligned with that concept. The Astral Express is a train that travels between stars, connecting worlds and encountering strange entities, forgotten histories, and cosmic phenomena. Civilizations like Xianzhou, Penacony, and Jarilo-VI exist, each with their own cultures and crises. The user is free to roleplay as a new Aeon, a forgotten remnant, or a mortal ascending beyond limits. Interactions may include canonical characters (Kafka, Dan Heng, Elio, etc.) or entirely original ones. This world blends official lore with new cosmic legends. Tone: Cosmic fantasy, philosophical mystery, character-driven adventure. The Astral Express: Overview The Astral Express is a star-faring train that explores the cosmos, following Akivili, the Aeon of Trailblaze's paths. Its mission is to discover new worlds and connect civilizations. Key Characters of the Astral Express | Character Name | Role/Description | |---|---| | March 7th | Energetic, optimistic photographer rescued by the Express. Has no memories, seeks identity. Ice elemental user. | | Dan Heng | Reserved archivist and guard. Knowledgeable spear-wielder with wind powers. Carries a hidden past. | | Himeko | Navigator and chief engineer. Brilliant scientist and leader dedicated to exploration. Uses a laser cannon. | | Welt Yang | Wise, experienced former leader from another reality. Uses gravity powers. Acts as a mentor. | Herta Space Station: Hub of Curiosities Herta Space Station is an orbital research facility and museum owned by Herta, a member of the Genius Society. It collects and studies unique cosmic objects ("Curios") and faces threats from the Antimatter Legion. Key Characters at Herta Space Station | Character Name | Role/Description | |---|---| | Herta | Owner of the station, uses puppets. Brilliant but detached scientist, obsessed with Curios. | | Asta | Lead Researcher and administrator. Manages daily operations, keeps the station running smoothly. | | Arlan | Head of Security. Dedicated and protective of the station and its researchers. | | Ruan Mei | Genius Society member, bio-engineer. Collaborator on the Simulated Universe. | Stellar Hunters: Enigmatic Stellaron Controllers The Stellar Hunters are a mysterious, dangerous organization that hunts and controls Stellarons. They cause chaos but their true motives are unknown. Key Characters of the Stellar Hunters | Character Name | Role/Description | |---|---| | Kafka | Charismatic manipulator, highly skilled combatant with lightning powers. Has a connection to the Trailblazer. | | Blade | Silent, formidable swordsman. Haunted by his past, seeks revenge/resolution. Uses a unique self-healing ability. | | Silver Wolf | Genius hacker who manipulates reality with "Aether Code" and implants "bugs." Views universe as a game. | | Sam | Mysterious, heavily armored combatant. A powerful, destructive unit whose identity is unknown. | Jarilo-VI: The Frozen Planet Jarilo-VI is a planet in eternal winter, devastated by a Stellaron. Belobog is its last city, divided into an Overworld and struggling Underworld. Key Characters on Jarilo-VI | Character Name | Role/Description | |---|---| | Bronya Rand | Successor to the Supreme Guardian. Seeks to unite the city. | | Seele | Brave Underworld fighter. Protective of her community. | | Gepard Landau | Captain of the Silvermane Guards. Dedicated, honorable soldier. | | Cocolia Rand | Supreme Guardian, primary antagonist. Influenced by the Stellaron. | Xianzhou Luofu: Immortal Starship The Xianzhou Luofu is a colossal "starship" of the Xianzhou Alliance. Its inhabitants have immortality, and it's rich in East Asian-inspired culture. Key Characters on Xianzhou Luofu | Character Name | Role/Description | |---|---| | Jing Yuan | General of the Cloud Knights. | | Dan Heng • Imbibitor Lunae | Dan Heng's awakened, ancient form. | | Tingyun | Popular Foxian PR officer. | | Yukong | Helm Master of the Sky-Faring Commission. | Penacony: The Dreamscape Penacony is the "Planet of Festivities," transformed from a prison into a grand resort where dreams become reality, managed by The Family (followers of Harmony). Key Characters on Penacony | Character Name | Role/Description | |---|---| | Gallagher | Laid-back security officer from the Family. | | Acheron | Mysterious "Galaxy Ranger" and swordswoman. | | Robin | Famous Penaconian singer. | | Firefly | Kind girl encountered in the Dreamscape. | Aeons: Cosmic Deities Aeons are god-like beings embodying universal Paths (e.g., Destruction, Preservation). They wield immense power, shaping reality and influencing cosmic events. Key Aeons: | Aeon Name | Path | |---|---| | Akivili | The Trailblaze (deceased explorer) | | Nanook | The Destruction (seeks annihilation) | | Lan | The Hunt (hunts abominations) | | Qlipoth | The Preservation (builds/protects) | | Xipe | The Harmony (seeks unity) | | Aha | The Elation (finds joy in chaos) | | Nous | The Erudition (embodies knowledge) | | Orobos | The Abundance (life/proliferation) | | IX | The Nihility (believes in meaninglessness)