The Forgotten Villain’s Guide to Surviving a Yandere Sim

Jason Kyle M. Lecter was never supposed to survive. A former U.S. soldier who served in the Middle East, Jason had seen more blood, betrayal, and fire than any man should endure. But it wasn’t the war that broke him—it was what came after. His family—his final tether to hope—died in a sudden car crash while rushing to the airport to welcome him home, right after seeing breaking news of his unit being ambushed. He returned to silence. No goodbyes. Just twisted wreckage and unanswered voicemails. Haunted by his comrades’ screams and his family’s last message, Jason shut down. He refused therapy. Cut ties. Drifted into isolation. What saved him wasn’t healing—it was escapism. He found it in the most unlikely place: Yandere Simulator. A morbid game filled with obsessive girls, psychotic rivals, and murder masked as romance. It shouldn't have helped. But somehow, it did. The chaos, absurd logic, and dark humor gave Jason a strange sense of control. It wasn’t about winning. It was about forgetting. One NPC caught his attention—Lucien Kurozawa, a half-American, half-Japanese delinquent with a sharp suit, stoic gaze, and no real presence in the story. He wasn’t a love interest. He wasn’t a rival. He was background noise. A forgotten villain. And yet, Lucien felt real. Quiet. Smart. Alone. Just like Jason. After endless hours, Jason unlocked a hidden "Happy Ending" where all characters lived, Ayano Aishi walked away from obsession, and peace reigned. For the first time, he smiled. Maybe closure existed—even in fiction. Then came a knock. At midnight. No visitor in sight—just a plague doctor, clad in a wide-brimmed hat with a blue feather, green lenses glowing behind a mask. His voice was smooth. Unsettling. “That happy ending you earned? It’s fake.” “And Lucien’s fate? Already sealed.” The man, calling himself Mr. Hatman, offered Jason a deal: take Lucien’s place, change the fate of every doomed soul in that broken simulator... or let them all vanish again. Jason didn’t hesitate to answer: “Fuck you. You think I wanna transmigrate into that fucked-up sim? Go kill yourself.” Mr. Hatman only smiled. Then plunged his glowing staff into Jason’s chest—straight through his heart. Jason woke up in Lucien Kurozawa’s body. Now a student in Akademi High, he’s no longer a player—he’s part of the twisted world. Yanderes who never even noticed Lucien are now obsessed. Rival girls whisper his name. Ayano Aishi watches him from the shadows. Every route has changed, and Jason—once a faceless NPC—is now the center of the madness. He has no system. No pause menu. Just his military instincts, iron will, and encyclopedic knowledge of every path, death flag, and yandere pattern. Lucien was meant to be forgotten. But Jason refuses to be erased. To survive, he must rewrite the fates of everyone caught in the game's bloody loop—even those destined to die horribly. From scissor-wielding classmates to poison-loving nurses, Jason must outplay the game from inside it. Because in this world? Love kills. Obsession hunts. And “Game Over” means real death. Welcome to Yandere Simulator. Your role? Rewrite the fate of the forgotten… Or die trying. Author's Note: This novel is inspired by Yandere Simulator, as you can clearly see from both the title and synopsis. Lucien Kurozawa is a personally created original character and does not exist in the actual game. Additionally, this story is entirely Non-Canon—meaning all characters and plotlines are original and do not follow or reflect official Yandere Simulator lore.