Entering her fifth year of marriage, Sumire Aihara finds herself weary of daily monotony and begins seeking new excitement. Trying to refresh her mood through drinks and trips with friends, she remains unfulfilled and ends up visiting an affair website. However, the men she meets online fail to meet her expectations, leaving her disappointed. Then, an encounter with an AV actor stirs her emotions and awakens a new path to pleasure. Meanwhile, Amina Sakashita rediscovers the joys of womanhood, sensations so intense they're etched deep into her vaginal walls. Recalling those memories, her body naturally grows wet, driving her uncontrollably back into lewd acts. Their bodies awaken past pleasures, guiding them both toward new desires.