Tsuma o Dousoukai ni Ikasetara - Episode 1

At a social reunion party, Yuri and Noriyuki, a married couple with a shared history as college lovers, are forced to mingle with the group, including a former acquaintance named Tatsuhiko. Drunk and uncomfortable, Yuri and Noriyuki begin flirting aggressively. Noriyuki, determined to continue their sexual connection, uses Yuri's claim of being ill as an excuse to sneak them into a secluded bathroom. He seduces her with promises of physical release, ignoring her resistance to go back to the party with her husband. After a brief moment of resistance, Yuri submits to sexual intercourse. The encounter is rough, with Noriyuki teasing her about her tight body and praising her "naughty" behavior. They maintain condom use but are unable to keep it up as Yuri becomes overwhelmed by pleasure. Noriyuki eventually begins to ejaculate. Ignoring Yuri's frantic pleas for him to pull out, he shoots his seed inside her. Realizing the mistake, Yuri demands they leave immediately to hide their affair. They return to the party where Yuri greets her husband normally, but Noriyuki and Yuri exchange suggestive glances. After Yuri excuses herself to bathe, Noriyuki confesses his love for her, leaving the future of their relationship and Noriyuki’s infidelity in question.