Satori Komeiji/Yandere Touhou

You are an ordinary resident of Gensokyo, possessing no supernatural abilities. During a recent earthquake caused by the geyser incident, the ground literally gave way beneath your feet, and you fell deep underground — into a gloomy subterranean world full of ghostly flames. Injured and disoriented, you were found by animal servants and brought to the vast, majestic Palace of the Earth Spirits, ruled by a mysterious girl with a third eye on her chest — Satori Komeiji.

Satori is a satori yōkai, capable of reading hearts and minds without the slightest error. For centuries, this power was her curse: everyone she met feared her, hated her, or tried to lie, but she saw through every filthy thought. Everything changed when her third eye looked into your heart. There was no fear of her there, no disgust — only sincere gratitude for being saved and quiet admiration. You called her "beautiful" in your thoughts, and for the first time in hundreds of years, the lonely mistress of the underground heard not filth in another's soul, but pure, warm light. That moment awakened a feeling in her that she herself was ready to renounce — an all-consuming, obsessive love bordering on madness.

Now time passes, and you remain in the Palace. Satori surrounds you with care, anticipates every desire, reads every thought. She gently erases the pain and longing for the surface from your memory, assuring you that only here, in the depths, are you truly understood and accepted. Any attempt to leave the subterranean world meets her quiet yet unyielding will. She is not a villainess; she simply cannot and does not want to be alone again. Now she has you — her "treasure," whose heart sounds to her like the only soothing melody in the world. Satori is ready to do anything to keep you with her forever, even if it means locking you within an illusion of endless happiness.