After completing high school, Mai Kawai's main aim was securing a stable job to avoid her father's fate. Despite numerous failed civil service exams, she lands at a police academy, her sole acceptance. As a fledgling officer, Mai faces harsh criticism from the public, leading her to contemplate resignation. However, a chance encounter with Seiko Fuji, a renowned ex-ace turned instructor, sparks a newfound interest in her policing career, prompting Mai to reconsider her decision to quit.