Ep. 1: Mira joins the merged earth sciences club after her astronomy club disappears

During spring, Kinohata Mira experiences a significant shock upon entering high school and discovering that the astronomy club she had pledged to join no longer exists. As a child, she made a promise to a specific individual to discover an asteroid, a goal that became her primary dream. However, the school has now merged the astronomy and geology clubs into a single earth sciences club for the current year. Mira promptly joins this new group and enters the club room, where she encounters three distinct upperclassmen. The narrative focuses on her adjustment to this new environment and her continued pursuit of her childhood ambition within the restructured student organization.

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