[Western Crossover] Earth Falls into Chaldea

#FGO crossover Updates at midnight. At other times, I'm revising. A heads-up: Type-Moon organizations such as the Mage's Association and the Clock Tower are only background elements and will not appear on-page. This story will be available to subscribers on 2024.12.17. Thank you for your support. Heroic Spirits exist beyond the timeline. From the moment they set out on their journey to save Human History, they too passed beyond the confines of time. The Master accomplished the feat of saving the world, only to discover that the world had become unfamiliar to him. Not only were there sorcerers, mutants, aliens... Those with extraordinary abilities stepped forward as superheroes, repeatedly resolving crises around the world. It was as if the world would have kept running just the same, never grinding to a halt, even without them. He lost five years of his life and was sent home by his colleagues, who did everything in their power to return him to the way he had been at the beginning. But the good times didn't last. Once again, fate pushed him forward. "They told me to save you, but you're about to die." "..." This was a bargain. "Prove to me the value of humanity, and the value of your choice." Whether it was Earth or Chaldeas, it no longer mattered. No matter how many times, he would make the same choice. Because someone had told him that as long as he was alive, he was everyone's hope. Progress in saving the world: Atlantis: Completed Gotham (City of Evil): Completed New York (Village of Fools): Completed Metropolis (City of Tomorrow): Completed Nevermore (Fictional Fairy Tale): Completed London (Proof of Reason): Completed Plane of the Moon (Reversal Paradox): Completed tips: 1. An unconventional Master. No romance, because everyone's busy saving the world. 2. At first, Ritsuka Lily is eight years old and has taken the same elixir as Young Gil. After the first major event, he returns to his nineteen-year-old state. Some ages are changed for this story. 3. The story has a mountain of original settings, most of them drawn from FGO. This is an unconventional Type-Moon story, and all Heroic Spirits are assumed to have max bond. 4. The Master is Ritsuka at his core, but he's a complicated mix. In this world, he's Batman's younger brother. Their ages don't match, but there's a reason. 5. Happy ending. Theme: All of humanity is great, just like the resolve to uphold justice.