This Is Teyvat, Not Amphoreus

This story is also known as "Why Can't Teyvat Be Amphoreus?" Coming soon: "Card World: Starting with a Single Pull of Xianzhou Luofu" Blurb: A young man cosplaying as the Traveler, Aether, transmigrates aboard the Astral Express, which has already left Penacony. Along with three members of the crew, who have been attacked and sent plummeting, he crashes onto a planet Akivili has never set foot on. This continent is founded on the power of the Undying, governed by the power of Order, and secretly regulated by a third Path hidden in the shadows. Three intertwined Paths influence the entire world together. This place is-- "It's Teyvat!" the young cosplayer insists. Even if this place has its own heavenly laws, an Abyssal invasion like a dark tide, an Ice Queen collecting the Gnoses, and a cyclical legend that says "the world is one big Sabzeruz Festival"... "Teyvat is Teyvat. It can't possibly become Amphoreus." "Right. Even if there's a Stellaron here, too." To the Astral Express Crew, the young man who accidentally crashed into this new world with the train is obedient and adorable. Like a fledgling, he follows them around without complaint, someone they need to protect carefully. Until the Abyss Mages attack. As one is beaten back into the Ley Lines, it calls out to the young man, "Your Highness, Prince!" "So I'm the Abyss Prince, Aether?" Once he realizes who he is, a golden sword appears in his hand. Watching the Astral Express Crew fight by his side, he is filled with confidence. It's time to raise the banner of rebellion against Celestia! The Abyss Prince, staying with the Abyss Order, has recently noticed strange stirrings within his organization... 1. It may look like the story has a huge scope, but at heart it's a sweet, fluffy slice-of-life story full of affectionate moments, with fun little adventures about the Astral Express Crew exploring Teyvat mixed in. 2. The worldbuilding is based on Teyvat merging into the Honkai: Star Rail universe. 3. The pairings will probably have separate endings. The main story is just about being affectionate. (The routes will probably include Caelus, Dan Heng, Sunday, and Abyss Aether.) Coming-soon blurb: Xiao Xingyun, a fragile college student who played both the original game and Honkai: Star Rail, dies suddenly and transmigrates into a wish-fulfillment card-game novel. He becomes a disposable character who was abandoned by his family and is destined to die after suffering every kind of torment. Barely alive, Xiao Xingyun immediately decides to fight back. In front of everyone, he makes a single pull and draws his first card. A blinding golden light flashes. Four large characters appear on the card's face: "Xianzhou Luofu." The card transforms into a magnificent starship, blotting out the sky. Hearing cries of "Xianzhou, take flight! Cloud Knights, ever victorious!" Xiao Xingyun slowly widens his eyes. ??? Is this right? But Xiao Xingyun doesn't yet know that this is only the beginning. Later, he draws Hu Tao for the Ten-Lords Commission. Xiao Xingyun: ? He draws Aventurine for the Sky-Faring Commission. Xiao Xingyun: Does the IPC have a problem with this? He draws Greater Lord Rukkhadevata for the Divine Tree. Xiao Xingyun: ...This one really can't be right! Just as Xiao Xingyun begins to think these card characters are merely copies created by his mental energy, someone suddenly whispers in his ear, "So when you're not playing with us, you're playing with them?" Theme: Exploration and adventure, and then saving the world