Minori Kisaragi, a seemingly ordinary housewife, has built her life around her husband Yudai. After a decade of dating and now with a 5-year-old son, her world crumbles when she discovers Yudai’s infidelity spanning a shocking 15 years. Fueled by betrayal, Minori embarks on a mission of revenge. Her quest leads her to Wataru Miyake, a high school student whose mother, Riko, is entangled with Yudia. As Minori gathers evidence of the affair, a deeper truth emerges. A long-held secret about her own past surfaces, throwing her entire identity into question. What began as revenge unfolds into a web of conspiracy, where Yudia’s affair is just the tip of the iceberg.