Haruki Masato, once a story lover and aspiring light novelist, has fallen silent in his writing due to a traumatic incident. One day, however, his diary—which contained the last pieces of fiction he had written—was discovered by his infamous schoolmate, Aoi Hana. Now, she constantly teases him about it, all while hiding her own failed dream. Their shared experiences of failure bring them together, inspiring them to help others so they might not fail as they did.