Just after giving birth, Ayaka (Ayaka Mizora) moves to a new town due to her husband's job, despite not feeling well. For this couple experiencing parenthood for the first time, their new life is filled with hope and excitement. However, as Ayaka struggles to adjust to the unfamiliar environment, her health steadily declines. At her husband's urging, she visits the unfamiliar [Hanaoka Obstetrics and Gynecology Clinic] in the area. This routine examination becomes the catalyst that abruptly shatters the peaceful life of the Katagiri couple, marking the beginning of their new life—and the start of unforeseen troubles.