Yano Nanako is a twenty-four-year-old office worker who, despite late overtime shifts and persistent invitations from coworkers to go out, always finds herself drawn to one place after work: the baseball stadium. There, she laughs and cries alongside the unpredictable swings of the game, never once taking her eyes off the action on the field. The story follows Nanako as she engages in a full-throttle, all-in baseball-watching chronicle, capturing the passion of a solo female fan completely absorbed by the sport.