After divorcing her husband, Jitsuka is raising her son on her own. Devoting herself to parenting and part-time work, Jitsuka recently began to feel a sense of crisis as she lost her charm as a woman. One day, she reunites with an old friend, Hitomi. Upon seeing Hitomi, who has become radiantly feminine, Jitsuka asks her about the reason. When she learns that it's because of "fitting panties," Jitsuka immediately buys a large quantity of them...