ADN-536 After Agreeing with My Father-in-Law to Insert for Only 10 Seconds... I Climaxed in Perfect Sync with His Body - Miba

During her husband's long business trip, married woman Yuuka finds herself alone with her father-in-law. Succumbing to his intense desires, she agrees to have sex under the promise of "just 10 seconds of insertion," but their bodies prove to be so perfectly compatible that Yuuka loses herself in ecstasy. Thereafter, the promise becomes a mere formality, and the two plunge into a forbidden relationship of intense mutual craving. Even after her husband's return, Yuuka remains obsessed with sex with her father-in-law, and the story depicts the tragic end of the woman enslaved by carnal lust.