Aoi Shiho, a graduate of a prestigious private women's university in Tokyo, was born into a strict, traditional family in Tohoku. Due to her father's business connections, she entered an arranged marriage with the heir of an established company. However, after marriage, it became clear that her husband was sexually impotent. A serious and deeply affectionate woman, she continued supporting him through his demanding work life. Over time, however, her husband began suspecting her of infidelity, causing their relationship to deteriorate. A fetish masterpiece blending torment and bondage, immersed in forbidden pleasure. As her suppressed desires clash with his growing suspicions, intense sensations coil around her forbidden orifice.