The Monster Queen

If life had different difficulty levels, Yano Misa felt she was definitely playing on hard mode. A sealed-off room, evil researchers, cruel experiments. With all three in place, it was as if they were pointing her toward the only way out: Go completely dark, little girl! Yano Misa: I'm exhausted. I refuse. So she could lie flat in peace, she set herself a small goal first: Become top-tier in combat! Wait... What was the name of the technique she'd awakened again? Oh, right. Summon the ghosts and monsters that don't exist in this world, and make them shikigami who obey her alone. Thinking of all the monster movies she'd watched in her previous life, Yano Misa felt she was one step closer to her ultimate dream. And so: A headsman wearing a triangular helmet advanced, surrounded by a swarm of insects, his heavy blade leaving deep grooves in the ground; Twin girls in blue dresses walked hand in hand out of the thick fog, wearing identical mysterious smiles; A grinning clown opened a mouth full of sharp teeth, three bright points of light circling in its throat; Monster Zero descended amid a thunderstorm, its wings spreading across the sky as it unleashed gravitational rays in every direction; Yano Misa gave the monsters flesh and blood, and gathered their souls; The monsters regarded Yano Misa as their loyal partner, their one-of-a-kind treasure, and their supreme faith. Wherever she was, that was home to the monsters. She was, without a doubt, the Monster Queen. A friendly reminder: Crossover of multiple anime and horror works. Many characters who were supposed to die will be saved. The heroine is focused on getting stronger. There will be unrequited feelings and love-triangle drama, and the ending may have no pairing. There's no need to bet on a ship. The career storyline is the most satisfying. Please ignore any plot holes. I've only read Jujutsu Kaisen up to the Shibuya Incident. Any changes after that are purely for personal preference. Theme: Beliefs leave their mark on the soul.