Tsuma Netori: Ryoujoku Rinne

A beautiful high school physical education teacher becomes the primary target of a malicious man with a twisted, predatory obsession. When he successfully uncovers a fatal leverage to exert absolute control over her, her quiet, happy marriage is instantly thrown into jeopardy.

Desperate to safeguard her beloved family and protect her husband from ruin, the dedicated teacher finds herself forced to comply with every humiliating demand. Trapped in an escalating cycle of blackmail and coercion, she must push her moral boundaries to the limit, enduring continuous physical degradation as she desperately tries to keep her home life from shattering into pieces…