I impulsively had a one-night stand with a colleague I disliked after a drinking party. Unexpectedly, the penis that could penetrate deep into my vagina was so compatible that I experienced the ultimate orgasm... Even though I didn't like him at all, I kept asking for more sex. (Aozora Hikaru START-568)

Colleagues Aozora and Kuroda harbor mutual dislike. One day after a dinner party, Kuroda, having missed the last train, ends up spending the night at Aozora's apartment. During their reunion drinks, the conversation veers from work to sex. In the midst of their heated argument, an unexpected twist occurs: "Since you put it that way, why don't we give it a try!?"