Minami believed she had found a reliable and loving partner in Tatsuya, and their marriage began with warm expectations. Soon after she became pregnant, however, Tatsuya’s behavior shifted dramatically. Without asking for her consent, he cut her hair short. Without consulting her, he suddenly quit his job. When Minami tried to understand his reasons, he reacted with evasiveness and hostility, deflecting any serious conversation. The gentle man she thought she knew had become a "landmine husband" – unpredictable, controlling, and emotionally draining.

As Minami struggles to make sense of the marriage, Tatsuya’s selfishness escalates: he complains about housework, makes irresponsible purchases without regard for their finances, and eventually engages in affairs with multiple women. When the truth of his infidelity comes to light, he loses his job. Still, Minami tries to give him another chance, hoping he will change for the sake of their child. But Tatsuya continues to lie, hides money she saved for their son, and even becomes physically and verbally abusive.

Reaching her breaking point, Minami resolves to divorce Tatsuya and rebuild her life independently. She turns a hobby of making accessories into a serious pursuit, taking on commissions and eventually landing a major collection project. With support from friends and a former colleague of Tatsuya named Nanako, Minami steadily gains financial footing and emotional strength. Tatsuya, aided by a troublesome business partner, repeatedly tries to sabotage her progress, but Minami gathers irrefutable evidence against him.

In the final confrontation, Minami presents the evidence and formally demands a divorce, cutting Tatsuya out of her life for good. Freed from the toxic marriage, she fully commits to her career as an accessory designer, securing a stable and fulfilling future for herself and her child. What began as a story of betrayal and despair becomes a clear-eyed account of one woman’s determination to reclaim her autonomy and build a better life on her own terms.