Which Fate/Stay Characters Appear In Other Nasuverse Works?

Elina thought she had hit rock bottom. She lost her job. Her therapy session dredged up memories of the ex-boyfriend who stalked and traumatized her. The only thing she had left to look forward to was the finale of her favorite fantasy series, Moonbound Faith. Then the show ended. The heroes won. The villain died. Everyone got their happily-ever-after. That same night, a knock at her door shatters what little peace she has left. Her ex is standing outside. The man who was supposed to be in prison. Forced to flee into a storm, Elina runs until she reaches the edge of a cliff with nowhere left to go. Faced with a choice between death and returning to the man who destroyed her life, she jumps. But instead of dying, she wakes up inside Moonbound Faith. Not as the heroine. Not as a side character. But as Luna—the infamous villainess whose tragic death she celebrated only hours before. Determined to survive, Elina plans to use her knowledge of the story to change her fate. But everything she thought she knew begins to unravel when a small boy tugs on her sleeve and calls her one word: “Mom.” The original story never mentioned a child. And when Elina uncovers the truth behind his existence, she realizes something terrifying. The villainess was never the villain. The story lied. And the ending she remembers may not be the ending waiting for her at all.

Evy was a simple-minded girl. If there's work she's there. Evy is a known workaholic. She works day and night, dedicating each of her waking hours to her jobs and making sure that she reaches the deadline. On the day of her birthday, her body gave up and she died alone from exhaustion. Upon receiving the chance of a new life, she was reincarnated as the daughter of the Duke of Polvaros and acquired the prose of living a comfortable life ahead of her. Only she doesn't want that. She wants to work. Even if it's being a maid, a hired killer, or an adventurer. She will do it. The only thing wrong with Evy is that she has no concept of reincarnation or being isekaid. In her head, she was kidnapped to a faraway land… stranded in a place far away from Japan. So she has to learn things as she goes with as little knowledge as anyone else. Having no sense of ever knowing that she was living in fantasy nor knowing the destruction that lies ahead in the future. Evy will do her best to live the life she wanted and surprise a couple of people on the way. Unbeknownst to her, all her actions will make a ripple. Whether they be for the better or worse.... Evy has no clue.

Fate Fighters ‍‍‍‍‍‍‍‍‍‍‍‍‍Alexandria stood watching them both, 'interesting, vampire guy wants to stay in Hollandis when he can't even control his thirst for blood' Alex thought. Alexandria is a wolf kid, her parents suspected she might have been deprived of powers, which is a curse to the werewolf clan one that could attract even a death sentence to the victim. Her parents decide to send her off to the human world, where she has to survive, with her unusual beauty, she goes through a lot. She later joins the National security and intelligence Academy in Hollandis_the human land where she learns to fight according to her parent's wishes. There she comes in contact with Regal the vampire prince, who had to escape his home after his father_the king, sudden death, he runs to Ben a human who is his father's friend and Alexandria's guardian. Alexandria is then stuck in the position of taking responsibility for him after knowing he is a vampire and could be dangerous to humans or refusing and sending him back to fang city, where he would either die or survive and come back for her. But they have one thing in common, to survive, they must both fight their unacceptable fate! "Regal Raymond, what do you want me to do, what if you harm someone, I can't always be there, who would take responsibility?" Ben asked, "she!" Regal said pointing suddenly at Alex. Alex, eyes widened in surprise "what?" Ben asked. "She would take responsibility for me" Regal repeated. "What! Me?" Alexandria exclaimed while eyeing him. "Why would I take responsibility for you? Who do you think you are Mister 'I know am handsome' huh? Alex mimicked. "Ben, she is incredibly strong, I just had a short encounter with her a while ago..."

Al, was thrown into another world for no apparent reason. A new world filled with magical things. However, this wasn't the first time he had been reincarnated. He thought he was just an ordinary youth, but it turned out that his identity was so extraordinary in his first reincarnation. There were his harems still waiting for his arrival. Will he meet them soon and what will happen?

A thirty-year-old office lady, who got into an accident and is now trapped inside a novel series she loves. She was reincarnated into one of the side character extras of the story and meets in person the tyrant magician, the playboy prince, and the clueless female lead of the story.

Tasoshi Saya, the Supreme God of Zeronity. He was the strongest god to ever live. A mountain of strength that could never be crossed. On the day of his match against his opponent, the Breakers—he was suddenly transported into another world. A world filled with swords and magic. Power? Glory? All that was lost as he entered into the new world. Yet, despite his helplessness, the 'Supreme' God of Zeronity was excited. Challenges that will arise from the weak, opponents whom would stand against him toe to toe—the journey begins.