Sawako Honna is 42 years old, single, and gearing up to get the hell out of her high-pressure job at a film promotion company. Dealing with burnout, menopause, and the growing sense of life passing her by, she's ready to start making some changes -- and her peers and friends are increasingly finding themselves in the same boat. But between health challenges, romantic tension, personal failures, and aging parents, navigating your forties is hard. When her involvement in the dream project of a colleague diagnosed with terminal cancer results in them growing closer, Honna finds herself thinking more and more about what it means to have a life well-lived...