From premiere visual novel studio Nitroplus and Madoka Magica creator Urobuchi Gen comes a tale of loneliness, insanity, and boundless love.

Enter the world of Sakisaka Fuminori, a medical student who receives experimental brain surgery after a traumatic accident. He survives, but is left with warped senses that perceive the world as a hellish wasteland of pulsating flesh and twisted monsters. Into this world comes Saya, a girl who is the only thing that appears pure and beautiful. Can you and Saya escape the nightmare that surrounds you? A seminal work of horror and occult fiction in the visual novel medium.