How Do Fate Stay Night Crossover Stories Blend Different Universes?

What is fate? Is it something that was destined to happen? Can it be changed? No. If it can be changed, it would't be known as fate, isn't it? They say that fate can be control in our hands. Then, is it possible to take everything in total control in my hands?, I wondered. No, whatever the results is, I'm sure this was fated to happen under my control. This world... will surely go along with my favor. ................ "PLEASE!!! I BEG OF YOU!!! Join the Imperial Knights Academy as a special student or else I will be fired!!!" With such a line thrown to him, the 16-year-old human, Lucifer Nightwalker von Nightmare, an orphan who was stranded on an island with her little sister and magical pet-- was forced to compromise and attend the famous Imperial Knights Academy as a special student. While spending 3 years in the academy, he would meet his fated ones. After he graduates, he would then become an adventurer to explore the world, unlocking the secrets behind. This, will be the starting of his journey. In a world of sci-fi and fantasy. Humans, beast-kins, dragons, vampires, elves, fairies, spirits, dyrads, archangels, demons, dwarves, magical beasts, and much more, co-exist. Which later then, he would become a king-- leading everyone to challenge against the Celestial Gods. However, that was the boy's fate. ...................................... Everything begins with that fateful meeting six years ago. His fateful meeting with the principal of The Imperial Knights Academy. Yet, it wasn't even the beginning of fate. .....................................

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.

Man dies. His last act in the previous life generates him an absurd amount of karma. He meets a god, and it reborns him in a crossworld of Larry Potter and DxD. He gets a gift, one that can only be fully explored with the knowledge that he learned in his previous profession in the previous world. The keeping of knowledge is also a gift. And with that, his karma is spent. Thrown in the world with a 'good luck' and a slap in the back, he fights to survive until the start of canons. The time until that, 1000 years. Yeah… Now read about some of his adventures in this crossed over world, beginning already in HP canon. English is not my main language, so you will find some strange stuff, like the mix of North American and the Queen’s English. Disclaimer: All characters that you recognize from the franchise of Larry Potter and DxD are propriety of its respective creators and I only wish that they were mine. But they are not. I only own the MC, the OCs, and the ideas that generated the non canon plot.

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.

Scarlet never believed in destiny—until she died. Now bound to a mysterious system, she awakens in the bodies of betrayed women across countless worlds. Her mission is clear: avenge the fallen, slap the traitors, and conquer the hearts of different untouchable men. From an academy ruled by gods in human form to kingdoms dripping in blood and betrayal to glittering cities where power is bought with desire—Scarlet must weave vengeance and temptation into every step she takes. She is no saint. She is no savior. She is the temptress who thrives on revenge, a woman whose charm is as lethal as her kiss. But with every world, every mission, and every heart she wins… Scarlet begins to wonder. Is she the player in this game of fate— Or the one being played?

There are a lot of supernatural beings around us that we didn't know they're actually living or true. Once they are just a myth, a fantasy, a mere story, but then one day, you didn't realize it was standing right in front of you now. Avis Clove, just like a normal people, we have a lot of questions about the existence of gods or deities. And sometimes those questions don't meet their answers. She grew up knowing the stories of her grandmother about a two gods and one girl who's in between of the gods, and she believes it was just fantasy story that is just made up by her grandma. But, then she met the characters in that story, and the questions in her mind starting to find its answers. In this novel, about the three people who is fated to meet each other, but leads to the most unwanted happenings of their life. What will they do? What will Avis Clove choose? Will the love wins? Who will be the end game?