Miki Yakata, a former member of an all-girl Japanese idol group, was diagnosed with breast cancer at age 26, and underwent surgery to remove her left breast. In May 2018, she started keeping a video diary to record her daily experiences, and her feelings about things like losing her hair during chemotherapy and her anxiety over juggling work and treatment. Today, breast cancer is common, affecting one in every 11 Japanese women. This is a 6-month record of one woman's life-changing journey.