A wandering medium, Airi spends her life guiding restless spirits out of the world of the living. Summoned to an isolated country house, she comes face to face with a grotesque apparition with powers that defy Airi’s experience. As she digs deeper into the house’s past, a secret comes to light — and Airi finds herself hunted by a far more unpredictable force. For the first time, her greatest adversary is not the supernatural, but the living.