Gaiarth - a world devastated by a cataclysmic war, where pockets of humanity struggle to survive amidst the wreckage of technologies made magical by ignorance. Gaiarth - a world where artificially intelligent machines doggedly pursue their programmed imperatives: to protect, or destroy, humanity. Gaiarth - a world in which an old and terrible evil has reawakened, threatening to once again bring forth Armageddon!

There have been many cases of stolen songs happening among the idols in Yokohama District recently. Even super idol Marine Amagi's hit song "Kiseki no Uta" was taken away. At the request of Marine, the Milky Holmes team starts investigating the case.

Set in the Meiji era, Kidou Shinsengumi Moeyo Ken tells the story of Kondou Yuuko, Hijikata Toshie and Okita Kaoru. These three are the daughters of former Shinsengumi members and, in the same fashion as their fathers were, they get called upon to protect Japan from its current problems. Much of their work deals with vanquishing the mysterious paranormal phenomena springing up ever more frequently in the Kyoto area and defending the city from any other dangers that may arise.

The Dunbas Empire tries to conquer the peaceful land of Rimbell. The three princesses are determined to resist the invaders, expecially the middle one, the tomboyish, sword-wielding Luna. After a magical escapade in the cellars of the castle, she finds herself embedded up to the hips in the head of a huge green reptile, the legendary Varga, and acting as its "brain." Even when in human form she has a reptilian tail. She has to fend off a very persistent giant invader and rescue her sister who has been kidnapped by a pterodactyl.