Ichiko and Otoya are happily married, despite not having sex for the last two years. The secret to their happiness is Otoya's affair with Mitsuki, which Ichiko approves. Everything is going well until Otoya rejects Ichiko's advances on the night of their seventh anniversary. In shock, Ichiko seeks advice from her friend who suggests she exercise her right to have a boyfriend of her own.

Nishina Shiho, is a young mother and raises her child while working as a writer at home. Although she enjoys her life and has a perfect husband, she is troubled by her lack of sex with her husband, Kosuke, who has ED. Due to this, Kosuke suggests that they attend a "couple exchange party", where couples change their partners for various reasons.

Challenging the burden of family traditions, the young Amel and Mashir live a secret and passionate love story. An arranged marriage between him and Amel’s new best friend will put their relationship in danger. Tearing apart social conventions seems to be the only way to stay together.

Hotaru Kusakari is married to Gorō Kusakari, and she works as a pharmacist. She holds a secret that she is really a ninja and part of the Kōka ninja clan. Her husband holds a routine job as a postal delivery man, but he has a secret as well. He is also a ninja and part of the Iga ninja clan. Even though Hotaru and Gorō are a married couple, they are each unaware that their partner is a ninja.

网络设计师一子 （ 高畑充希 饰）和在文具制造厂工作的丈夫二也 （ 冈田将生 饰）是像朋友一样什么都能说的“好朋友”式夫妇。但婚后无子女的二人有一个秘密。那就是，每个月的第三个星期四晚上，二也会和恋人一起度过。因为为了维持夫妻关系，两人选择了“婚外恋爱许可制” 。

Hailey's professional code of ethics prevents her from going to the police about a client's confession, so she must find another way to bring the killer to justice.

After having been rescued from suicide, a young man is the object of a bet by his doctor that the doctor can help him recover his joy in life. Ironically, the doctor's life is not a very happy one either, and his boast has a hollow sound. For one thing, although he seemingly has a "happy divorce," in which he, his ex-wife and her new husband are all great pals, it's not true. He wants his wife back. All sorts of complications arise out of these lies and distortions.

The remarkable true story of Edwardian writer Vita Sackville-West and her husband Harold Nicolson.

Succesful businesswoman Chris Winslow gives up her career to raise her deceased sister's son, Kevin. Eight years later, she must contend with the boy's father who was unaware of his son's existence. Prompted by a wise judge, they decide to enter into a marriage of convenience in order to not upset the child, though they soon find that they may just be in love after all.

A squadron leader and a retired milkman decide to bury their differences and move in together after they are both widowed on the very same night. They become a companionable if odd couple, until their unlikely friendship is threatened by the arrival of an alluring woman with a hidden agenda.