Marika Katou, a third year student at Hakuho Girls' Academy, is a legitimate space pirate with a Letter of Marque. Between her studies, leading her school's space yacht club, working part time at Cafe Lamp, and being the captain of the space pirate ship Bentenmaru, Marika's days are very busy. One day, Marika gets a job to rob a high-class passenger ship, and she discovers that on the passenger list is Kanata Mugen, a boy who owns a "galaxy pass". Thus, an adventure featuring a hyperspace race between pirates and one young boy begins.
A year has passed since Menma's ghostly return to the Super Peace Busters. Although the time they spent together during that summer was short, the five members reminisce about what happened as they each write a letter to their lost friend.
Kaoru is a 17-year-old boy with an SM fetish, secretly dreaming of an SM relationship with his childhood friend Nana. One day Kaoru's mother asks Nana to hide all his SM toys so that he will study for a change. However, Nana finds the leather one-piece that Kaoru bought and tries it on, but she accidentally locks it and does not have the key! This is the beginning of a very strange relationship..
To save both the Magical Kingdom and the Heavens and restore the flow of akuto, the flow of energy of everything, the Magical King Munto must follow a vision and find the girl Yumemi in the normal world. Yumemi herself is just a normal girl except that she is the only one who can see the islands of the Heavens floating above. When Munto appears before her she starts thinking about hers and others responsibility to the world. (Source: ANN)
The OVA features six separate stories revolving around the cast, some of which border on the bizarre; one of which is an MMORPG environment being played by Konata, Kagami, Tsukasa, and Nanako Kuroi, and another in which Kagami has a "suggestive" dream about Konata.
