It has been five years since her nephew Noboru started living with her. At first, Eriko felt a little uneasy, but before long, she had built a comfortable, familial bond with him, like they were truly related. One day, Noboru, who was aspiring to become a novelist, confided in Eriko about his struggle writing a kiss scene in his current work. Having secretly admired her for years, he suddenly pressed his lips against hers. Eriko, swept away by his intense, passionate kiss—something she had never experienced with her husband—responded eagerly, intertwining her tongue with his in a deep, lustful kiss. From that day on, an illicit love affair began between the two. A warm yet heartbreaking story, filled with temptation, begins here.