Both are traveling on the Astral Express, a large cosmic train that travels the universe along the eponymous 'Star Rail'.

The Trailblazer wakes up and meets two members of the crew, March 7th and Dan Heng. They join a band of adventurers, the Trailblazers, traveling from world to world aboard the Astral Express, their space train. The player character, the Trailblazer, whose name and gender is chosen by the player, awakens without their memory aboard a space station and discovers that they are imbued with a Stellaron, a disruptive cosmic entity. The game is set in a science fantasy universe in which humanity follows certain paths of beings called Aeons. Elements of open-world and dungeon exploration are present, with multiple mechanics, including the gacha system, carried over from HoYoverse's action RPG Genshin Impact. Honkai: Star Rail follows the gameplay style of classic Japanese role-playing games: players build up a lineup of characters, and control a team of four in turn-based combat. It is the fourth installment in the Honkai series, drawing on characters from Honkai Impact 3rd and gameplay elements from Genshin Impact.

It was released on April 26, 2023, for Windows and mobile devices ports for PlayStation 4 and 5 are planned. 'Honkai: Star Dome Railway') is a role-playing gacha video game developed by miHoYo, published by miHoYo in China and by its subsidiary HoYoverse worldwide. Honkai: Star Rail ( Chinese: 崩坏: 星穹铁道 pinyin: Bēnghuài: Xīngqióng Tiědào lit.

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