Wife Nana harbors a secret she can't tell her husband—the forbidden relationship with her stepson Jun. Confused by Jun's increasingly bold advances, Nana finds herself drawn to him despite being married. She grows frustrated with her inability to resist his passionate advances and intimate touches, yet feels compelled to continue their affair. Fearful of her husband finding out, Nana's bond with Jun deepens, intensifying her excitement and anticipation, driving her to climax repeatedly. A forbidden love story filled with inner conflict and overwhelming desire.