After a fun Friday night with several friends, Ranran woke up on Saturday morning to find a male friend sleeping beside her. "Did we do it because of the alcohol...?" Despite her appearance, Ranran is surprisingly shy and innocent. As she feels anxious, her male friend wakes up. While she's unsure if they actually had sex, he approaches her with an unexpected intimacy. Shy and hesitant, Ranran just goes with the flow and ends up having sex. But it wasn't bad... in fact, it was great. From there began a weekend-only shared life. Sex, eating, and sex again. Sleeping and waking up, they have sex on Sunday too, then go to the convenience store and have sex again. Shaking her huge breasts, she exposes everything to him, immersing herself in the most wonderful weekend of lovey-dovey sex.