Fed up with her daily life spent solely for her husband, Kanako began a part-time job for no particular reason, where she met Uchimura, a young man with a thing for older women, and started a physical relationship with him. He is the one partner with whom she can expose her true desires and become lewd on her own. Uchimura knows Kanako's most sensitive erogenous zone—her nipples—inside out. He gently rolls them with his tongue and sometimes plays with them intensely using toys, while his sturdy cock leads Kanako to climax time and time again. Today, Kanako waits for Uchimura once more, her nipples already erect with anticipation...