A young girl named Kusunoki Mayowa moves to a town overlooking the sea called “Kumogaura” (Cloud Inlet). There, she encounters a warm boarding house, two suspicious look-alikes who are actually different people, a gentle, reclusive girl, and a clumsy young man. What is the reason Mayowa came to this town…? A record of dazzling yet dimly lit days unfolding in this mysterious town, centered around her.