I Wanted a Familiar But Summoned a Demon King Candidate

This is for fun, and pass time... These are the reports and documentation of subjects, exposed to in someway to a new source of magic, resulting in anomalous mutations, and transformations of these people, becoming something...twisted...

From Demon Slayer to Grand Ass

In a multiverse of infinite layers, Kael Veyris emerges as a singularity of power. He does not merely fighthe reshapes wars, redefines enemies, and rewrites the rules of life itself. As gods, titans, and cosmic entities attempt to challenge him, Kael’s reality warping abilities leave them powerless. But absolute power comes at a cost. With every law he bends and soul he claims, Kael must confront the fragility of identity, morality, and the infinite consequences of reshaping existence itself. wiki:https://the-architect-of-existence.fandom.com/wiki/The_Architect_of_Existence_Wiki

"What happens when you bring One Piece's Flower-Flower Fruit into the Shinobi world? You get a ninja who can spawn clones to weave twenty hand signs simultaneously, instantly casting S-rank jutsu without breaking a sweat!" "Saiki just wants a peaceful, wealthy life cooking for Tsunade and avoiding the battlefield, but his ridiculously overpowered abilities keep accidentally turning him into Konoha's most terrifying hidden monster." "Armed with the Rasengan, Raikiri, and the power to manifest a thousand-armed Wisdom King, watch as one anomaly completely shatters the power scaling of the impending Third Great Ninja War." "From effortlessly crushing Uchiha prodigies at the Academy to openly extorting the Third Hokage for millions of Ryo, this hilarious and action-packed journey redefines what it means to be a 'low-key' genius." Novel Tags: Overpowered Protagonist，Hidden Power / Low-Key MC，Crossover Elements ，Harem / Romance Subplot，Anime Fanfiction

14-year-old socially awkward Lovia travels to Teyvat, but instead of a majestic Traveler, she becomes a rare species—a Melusine! Penniless and starving, this Melusine was on the verge of a pathetic end... until she decided to pull off a "literary heist"! Thus, "The Travels of Rex Lapis" was born, throwing Liyue Harbor into instant chaos! "This author truly understands the Lord of Geo!" "Is this considered blasphemy against the Emperor?" Zhongli held his teacup, lost in thought: "This perspective... hmm, quite novel." However, Lovia was just getting started: The name Morax conceals twin gods and a life-and-death pact. "The Lord of Geo and the Half-Price Bargain" The Agony of the Guardian Yakshas. The Secrets of Feiyun Commerce Guild. Dragonfall: I Am the Dragon King. The History of the Guizhong Altar: Wrath of the Gods. When her "fan fiction" accurately revealed the hidden truths of Liyue's legends, the entire nation was in turmoil! Finally, the socially awkward girl was found by a beautiful Melusine from Fontaine (her kin). "Sorry I'm late." The once lonely Lovia never imagined she would find a home. But years later, a distinguished guest with elegant features and amber eyes personally came to her door... Lovia (trembling): "Your Majesty... would you believe me if I said I made it all up?" Zhongli (putting down the book): "From a logical point of view, the story is quite intriguing. Perhaps we can... explore it in more depth?"

After her grandfather's death, Bai Hanyun was disowned by her parents and cast out of the Bai family. With nowhere else to go, she left the city and returned to the countryside. There, by a twist of fate, she discovered an antique mirror hidden in the basement of her newly purchased home. From that moment on, strange events began to unfold—until one day, she stumbled upon a prayer from a young general. Feng Xiyan, besieged by the Yuezhi Tribe and betrayed by the imperial court, had been driven into a desperate corner. With no access to water, food, or medicine, he and the citizens of Xiqiang City could do nothing but await death. But just as all hope seemed lost, Heaven intervened. From that moment on, the Feng Army and the people of Xiqiang City had enough food and water, living lives more prosperous than even the Emperor himself.

He opened his eyes after 800 years of silence. The world he knew—gone. The future—unrecognizable. Now stranded in a place called Hero Town, Ron remembers nothing of his past. Yet his gift of adaptation keeps him alive. But fate has other plans. When he crosses paths with the enigmatic Dr. Thomas, everything he thought he knew about himself—and the world—begins to unravel.

Dungeons are not places one stumbles into. Those who enter are chosen—pulled from their lives and forced to survive in a world ruled by monsters, magic, and unforgiving rules. He was never meant to be there. A college student with an ordinary life and an unspoken crush, his fate changes in a single moment of instinct. When a strange light surrounds someone else, he steps in to save her—and is dragged into a dungeon he was never selected for. Inside, the dungeon refuses to acknowledge his existence. No guidance. No rewards. No protection. While others grow stronger through the dungeon’s system, he must survive without it—learning through pain, failure, and observation. Traps ignore him, but monsters do not. Power does not come freely, and every mistake leaves a mark. As he struggles to stay alive in a world that treats him as an error, unsettling questions begin to surface. The dungeon follows rules too precise to be natural, and survival feels less like a trial and more like part of something larger. Rejected by the dungeon and forced to walk a path no one was meant to take, he must uncover one truth to survive: What happens to someone who exists inside a system that refuses to recognize them?

He can become stronger just by writing a diary and complaining every day. At the beginning, he lets the beautiful queen Bibi Dong pursue him! I wanted to write my diary peacefully and grow stronger, but the goddesses started to act strangely one by one... Bibi Dong: "I actually fell in love with a loser? And ended up dying at Tang San's hands? That's complete bullshit!" Qian Renxue: "How could I possibly like Tang San?" Xiao Wu: "Being with Tang San actually led to the sacrifice of Da Ming and Er Ming?" Ning Rongrong: "Swords broken, bones shattered... I must avoid this Tang San!" RAW:人在斗罗写日记：女神倒追我