The wife of an obscure SM writer, Ryo, becomes entangled in her husband's secret when he serves a renowned author working on a new piece. Deprived of her sight and tightly bound with hemp rope, she trembles at the prospect of unfamiliar experiences, yet is gradually consumed by unknown pleasures and humiliation. Amid this ordeal, she is enveloped in sensations she has never felt before, undergoing a profound experience that challenges both her mind and body.