1928, Japan-occupied Korea. Eleven-year-old Miyoung has dreams too big for her tiny farming village near to become a teacher, to avoid an arranged marriage, to write her own future. When she is offered the chance to live with her older sister in Japan and continue her education, she is elated, even though it means leaving her sick mother—and her very name—behind.

In Kyoto, anti-Korean sentiment is rising every day, and Miyoung quickly realizes she must pass as Japanese if she expects to survive. Her Japanese name, Miyoko, helps her find a new calling as a nurse, but as the years go by, she fears that her true self is slipping away. She seeks solace in a Korean church group and, within it, finds something she never a romance with an activist that reignites her sense of purpose and gives her a cherished son.

As war looms on a new front and Miyoung feels the constraints of her adopted home tighten, she is faced with a choice that will change her life—and the lives of those she loves—forever.