A married woman, at her husband's command, films herself cheating with another man. This is a documentary where the wife, Yuki, 26 years old and married for four years, films her own sex with a man other than her husband to fulfill her husband's desire to be cuckolded. Though her expression hardens when a man takes her hand, she confesses to feeling it after being caressed, and then moans uncontrollably. She accepts the insertion of a larger cock than her husband's, commenting on it and reporting, "I can feel it..." From then on, she cries out "Iku!" repeatedly, reaching multiple orgasms in a row, even screaming, "If I go any further, I'll go crazy!" After confessing that she's actually a masochist, she writhes her hips with a toy and reaches heaven. She reaches multiple climaxes, making a commotion with the pleasure of the stranger's cock.