Seina Yamada's streak of misfortune takes a turn when a mix-up lands him in the Galaxy Police instead of his senpai, Tenchi. Despite his knack for stumbling into pirate encounters, Seina becomes a valuable asset as a decoy. Alongside four remarkable women who seem to counteract his bad luck with good fortune, they commandeer top-tier spacecraft to tackle the Da Ruma pirates. As the team faces this formidable threat, the question lingers: will the alluring Amane Kaunaq, the dependable Kiriko Masaki, the enigmatic Ryoko Balta, or the ancient yet childlike Neju Na Melmas capture Seina's heart?