Witness the dark and depraved downfall of a pristine upper-class wife in the latest installment of the popular "Wife NTR" series. Yurina Suzukaze is the beloved art teacher at a local academy, admired by her students for her grace and elegance. Happily married, she is simply filling a temporary position while her husband works abroad. However, her refined life takes a horrific turn when she becomes the target of a meticulously planned obsession. Her senior colleague, Sakakura, who harbors an abnormal fixation on her, finally puts his sinister scheme into action. Lured by a deceptive offer, Yurina finds herself trapped not in a training seminar, but in a hidden dungeon beneath the old school building. For two weeks, she will be subjected to unspeakable acts, broken down physically and psychologically in a room designed for pure depravity.