A young woman escapes from a city in the near future, where people's anger is medically controlled, and drifts away to a lonely island. It is the developer of the emotion-controlling medicine who finds her and marries her. Her memory is erased and she starts an entirely new quiet life as a different person. But an unexpected incident happens; many people get hurt; the truth is revealed; then she falls in love... And this is a comedy after all!

A lake sits beside a quiet town in the mountains. There is a new, big bridge scheduled to open. Yumi feels trapped in her routined life with her husband, after Yo, her daughter, married and moved out. Kazuko, Yumi's mother begins to sort her things as she senses her time is coming. Meanwhile, Yo is frustrated as she starts to recieve less job offers, struggling to cope with the reality against her expectations. The family will take the lead in the bridge's crossing ceremony with their secrets hidden deep within.

The drama is set on the Twilight Express, Japan's longest overnight train service, which runs approximately 22 hours between Osaka and Sapporo. Nakayama and Sato play Chie and Keisuke, two lovers who have decided to part ways at the end of the journey. Chie already has a family but has been carrying on a passionate, secret affair with Keisuke. The story mainly takes place in their suite room on the train. The drama was filmed aboard the actual Twilight Express with cooperation from the JR West company, which operates the train service.