A young boy enamored with an older girl, renowned for her writing prowess, neglects his long-standing secret hobby of meticulously crafting a fictional girl's persona for a real-life infatuation. After a two-month hiatus from his clandestine endeavor, he resolves to discard the multitude of notebooks detailing his imaginary companion's life. Envisioning this act as a form of purification, he ventures to a nearby shrine to burn the records. Serendipitously, he encounters his crush, the sempai, at the shrine during a sudden downpour. As they seek shelter and engage in conversation, she confides in him about her struggles as a novice writer. Empowered by her vulnerability, the boy decides to reveal his own hidden truth. Brimming with newfound bravery, he unveils his bag, originally supposed to contain the notebooks, only to discover his meticulously imagined girl—now manifested in the flesh, unveiling a surreal twist after a decade of imaginative devotion.