Ep. 1: Marika Katou assumes command of the Bentenmaru after her father's death.

While working at a cafe, Marika Katou is approached by individuals claiming to know her mother, Ririka. They later visit her home to inform her that her father, Gonzaemon, captain of the spaceship Bentenmaru, has died from food poisoning. A letter of marque requires Marika to take command for the vessel to operate legally. Confused, she researches the situation while the Bentenmaru’s helmsman and medic, Kane McDougal and Misa Grandwood, transfer to her school as a teacher and doctor. Mysterious transfer student Chiaki Kurihara also joins. At work, Marika observes suspicious men watching her. When Chiaki arrives, she reveals an impostor disguised as airport security attempting to abduct Marika. Chiaki initiates a gunfight in the cafe to stop the kidnapper and drags Marika to safety.

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