Maki feels unfulfilled by her mundane daily life. One day, her daughter brings home a swimsuit, triggering memories of her youth, and Maki becomes eager to try it on. As she playfully moves around in the bikini, her daughter's boyfriend, Satoshi, grows increasingly aroused. Later, he pleads with Maki, asking her to show him her bikini body again. Blushing, Maki agrees and shyly reveals her bikini-clad figure. Overcome with excitement, Satoshi can no longer restrain himself...