在这部我的宝物剧情/爱情片中,本剧讲述了全职主妇神崎美羽（松本若菜 饰）遭受丈夫神崎宏树（田中圭 饰）的情感暴力，如笼中鸟般过着日子，在意外重逢了青梅竹马冬月稜（深泽辰哉 饰），并共度一夜后怀孕了。为了守护所爱之人留下的宝物，她决定成为恶女，把自己和冬月的孩子谎称是宏树的孩子，让他抚养。但是，这个“托卵”的禁断决定，激烈地打乱了美羽、宏树、冬月3人相互纠缠的命运。
The third installment of the drama series that follows in this tradition, focusing on marital taboos, is titled \"My Treasure,\" and its theme is \"cuckoldry.\" \"Cuckoldry\" refers to the behavior seen in birds like cuckoos, where they lay their eggs in the nests of other birds, leaving them to raise the hatched chicks. Because it's something they can never confess to those around them, it rarely comes to light, but there are women who have children with men other than their husbands and raise them while falsely claiming they are the husband's children. In this production, the protagonist played by Matsumoto is Kanzaki Miwa, a full-time housewife. Miwa, who once worked for a large company but quit her job because she wanted to have children, finds her love for her husband, Kanzaki Hiroki, fading amid their busy lives. Now she even has to endure abuse akin to moral harassment from him. During this difficult time, Miwa unexpectedly reunites with Fuyutsuki Ryo, a childhood friend she had secretly been in love with. They spend a night together, and she ends up becoming pregnant with his child. Miwa then decides to become a villain for the sake of her child, deceiving Hiroki into believing it's his child and making him raise it.
