Seina Yamada's life as a hapless high school student was marked by accidents and mishaps, but things took a dramatic turn when he was conscripted into the Galaxy Police. As a result, he unexpectedly became a skilled pirate hunter, earning a reputation among the space-faring community. Despite his newfound success, Seina's clumsiness persists, and he relies on friends like Amane Kaunaq and Kiriko Masaki to keep him grounded. His goal now is to become a top-notch Galaxy Police officer.