The crew of the Bentenmaru and the soldiers of the Serenity Fleet are racing toward the treasure on the ghost ship. But the closer they get to their goal; it becomes obvious the treasure is bigger than imagined.

The Bentenmaru is up against the mysterious Serenity Fleet, 1 ship vs. 7. With battle imminent, another space riff happens bringing the prize everyone seeks. But who will claim it first?

As Chiaki fills in for Morika, the crew of the Bentenmaru is continuing their search for Golden Ghost Ship in a dangerous area. But in the rough weather, they meet Serenity warships; will the Princess be able to prevent a battle?

The Bentenmaru watches as the ship carrying the information they need is attacked by its own fleet. The princess makes the Fleet stand down, and they get the information they need. The "Golden Ghost Ship" they seek is plotting a dangerous course through nebulas and black holes, and they've got no choice but to go straight after it.

The stowaway has come aboard the Bentenmaru in search of Captain Kato to ask a favor. It’s a simple favor, which puts Marika and the crew in a new battle that can’t be solved with piracy.

Marika is a pirate now. But this means her grades start slipping, and since she can't go too far from home, the Bentenmaru's finances are in bad shape. To make up the slack, they're forced to take a rush job, but there's more going on than meets the eye...

Marika has decided to become a pirate captain. She fills out all the forms, but there's a clause she didn't know about: She has only 50 days to do an actual piracy mission, or her Letter is invalid.

The electronic battle between the Odette II and the mysterious ship has begun. Marika’s plan of tricking the opposing ship is working well, but once the Odette II goes on the offensive. The mysterious ship shows it has more firepower than they bargained for.

The Odette II continues its voyage through the Tau Ceti system. As they near the other side of the sun, their communications are blocked by an unknown source. High-frequency radar shows the jamming's coming from a ghost ship, a Colony Federation vessel that sank over 120 years ago.

It's time for the practice cruise, as the Odette-II takes off for a journey around the solar system. But whoever tried to hack into them earlier is still out there, and ancient ship has mechanical problems of its own...

Marika struggles with her decision to become captain of the Bentenmaru. Her mom takes her out to the countryside and gives her a gun that can shoot through tanks, and an even greater power.

Marika Katou is a normal highschool girl, living somewhere in space. At school, she enjoys being in the yacht club, and after school she works as a waitress at the Cafe "Lamp". One day, she is suddenly asked to become captain of the space pirate ship Bentenmaru.