Summer, a female club member, harbors a passionate affection for her advisor, Nakata, who is much older than her. During a club retreat late at night, she decides to tempt him, sneaking into his futon and initiating a reverse night... engaging in a riding position. Even though Nakata initially resists, thinking of his wife, he cannot resist the allure of her young, attractive body and ends up climaxing inside her. Her sun-tanned, healthy dark skin, overly developed large breasts, and buttocks... from then on, during the retreat, they indulge in soap play in the bath, intense nighttime climaxing intercourse, and sexual negotiations in competitive swimwear, deeply immersing themselves in their affair with Summer... *The recording content may vary depending on the distribution method.