The inspiration for this drama comes from Tanizaki Junichiro's "Love of a Fool", which tells a 20-year revenge story. It all stems from an encounter in youth. A new neighbor family moved next door to the girl Mayuko, and she hit it off with Yuri, who is of similar age, and became good friends. However, Mayuko, who is introverted, is always taken away by the cheerful and unrestrained Yuri, including her cherished necklace and the most important person around Mayuko. After adulthood, the greedy Yuri (played by Saki Takaoka) once again took away Mayuko's (played by Miho Nakayama) important person-first love Ryoichi (played by Seiichi Tanabe). Yuri is pregnant with Ryoichi's child, and the two get married with the child. The moment their son Naomi was born, he became Mayuko's revenge tool, and the curtain of revenge spanning 20 years officially opened. Today, 20 years later, under Mayuko's personal cultivation, Naomi (played by Ryusei Ryo) has become an ideal handsome man, and is deeply infatuated with Mayuko...