The stowaway reveals herself as Princess Gruelle Serenity of the Serenity Star System after Marika explains to her that her father Gonzaemon, the person Gruelle actually wanted to meet, has passed away. After introducing Gruelle to the crew of the Bentemaru, Gruelle requests Marika to help her find a golden ghost ship. While Gruelle claims that her officials are aware where she is, a recent official Serenity news report that Misa found on the other hand says Gruelle is reported missing much to everyone's suspicions. Suspecting a plot, Gruelle transfers to Hakuho Academy as transfer student who's popularity would prevent anyone kidnapping her while Misa investigates. When Marika is called for a emergency job with Gruelle tagging along, the Bentemaru learns six ships from the Serenity Defense Force are heading toward their star system but all of them are in battle mode and five of them are chasing a damaged Corback scout ship which the Morning Star government has tasked them to investigate. Gruelle believes the scout ship has the item she requested and the other ships are trying to prevent it from delivering it to her. Now knowing what to do, the Bentemaru prepares to meet the Serenity ships.