The girl I used to like has become the No.1 prostitute... All add-on items are available, ejaculation is unlimited, and we live together for three days of unrestrained sex. (Yami Rin FNS-237)

I heard a rumor that my childhood friend, whom I've always liked, had become a prostitute… Just then, my childhood friend Rin-chan suddenly contacted me: "I'd like to stay at your place for a while starting today." This girl is always so sudden… Just as I was hesitating, unsure of what to do, the walkie-talkie rang. It was Rin-chan. From that day on, our cohabitation began. Rin-chan said she felt bad about staying for free, so she used her expertise in prostitution to reward me. "Even though I look like this, I'm No. 1, you know." From breast bars, exclusive salons, bubble baths to actual sex, my childhood friend constantly played with me using various techniques… This overly blissful three-day life began.