Ujita Kie is a full-time housewife who has lived life steadily. One day, she suddenly discovers her husband's affair and is left with a divorce notice and no way to contact him. Shocked and angry, she locates the place where Marika, her husband's affair partner, lives. However, when she goes there, she meets Marika's boyfriend Kenta. The two who were cheated on begin to live together.
Mizuguchi Saki is an outstanding fashion magazine editor who grew up in a modern and liberal family. She meets Obara Koichi who is the ace of the Air Rescue Wing of the Air Self Defense Force. He grew up in a strict military family and is the classic straight-laced guy. Although Saki and Koichi are polar opposites, the two of them quickly get married without dating, believing that they would start a happy life as newlyweds after a lavish wedding ceremony. However, as they begin living together in the same house, their differences in lifestyles and values result in differences in opinions and huge fights. Saki and Koichi soon decide to get a divorce. But the couple have difficulty breaking the news of their decision to their families, colleagues and friends who celebrated their marriage and looked forward to the future. They thus start activities behind the scenes to prepare for their divorce.
Yuki Rio, the daughter of an old, prestigious family in Kyoto with over 1,000 years of history, enters into an arranged marriage at the age of 16 with a man she’s never met. Her husband is Takamine Masatomo, a handsome CEO in the IT industry. Every year on her birthday, she would receive 50 million yen, making their relationship one based solely on money. One day, after ten years had passed with no contact, Rio decided to move to Tokyo. She asks her husband, whom she’s meeting for the first time, for a divorce. On the other hand, Takamine finds himself unexpectedly attracted to Rio and doesn’t want a divorce. Thus begins a romantic battle between a wife who wants a divorce and a husband who refuses to let her go.
A romantic home comedy about 30-year-olds with an immature view on marriage that focuses on themes related to married couples and families in general. The protagonists of ‘Saikou no Rikon’ are two couples – Mitsuo and Yuka as well as Ryo and Akari. Mitsuo and Yuka have been married for two years, but their ways of thinking and living are completely different and they keep on quarreling with each other most of the time. Kosei is already regretting his marriage every day, yet his grandmother finally wants to see a great-grandchild. One day, he happens to meet Akari, his old girlfriend from his student days, which brings back pleasant memories. Right after he finds out Akari is already married, Yuka eventually asks him for a divorce but Mitsuo still ends up living with Yuka under the same roof due to some reason
