Twenty years prior to the story's beginning, an asteroid headed for Earth destroys Pluto. Due to Pluto's destruction, the asteroid, which is dubbed Thanatos, becomes temporarily stagnant. Now, in order to avoid Earth's impending destruction, the International Solarsystem Development Agency (ISDA) works on the "D-Project", and creates the "Dragonaut" after finding a dragon egg under the ocean. This weapon's primary purpose is to destroy the asteroid when the time comes. However, they soon find out that the asteroid is not their only threat, as powerful dragon-like creatures, which are bent on destruction, appear on Earth. After witnessing a murder by one of the creatures, Jin Kamishina, a lonely 18-year-old boy who lost his family in a shuttle accident two years ago, gets involved in the mysteries of the dragons and becomes the chosen pilot of the Dragonaut. Helping him on his journey is Toa, a mysterious girl who saves him from falling to his death after the creature attacks him. As they get deeper into the mysteries of the dragons, they encounter new friends and enemies, and also begin to develop a closer relationship. (Source: Wikipedia)

Teekyuu is all about the wacky antics of four schoolgirls—Kanae Shinjou gets bored easily and often breaks the laws of physics to get what she wants; Nasuno Takamiya is incredibly rich and knows how to make things go her way; Marimo Bandou would probably get arrested from her actions like eating panties or kidnapping children; and Yuri Oshimoto, their ordinary junior, rounds out the eccentric bunch that forms the sole members of their school's tennis club. Despite their interest in learning the sport, the older girls prefer messing around, while Yuri, being the only one who actually knows how to play and the most mature in spite of being younger, has to deal with her seniors' out of control behavior. When these four girls come together, insanity ensues in this lightning-paced comedy about a tennis club that doesn't really play tennis. [Written by MAL Rewrite]

The story revolves around Kibayashi, a teacher whose hobby is speaking with the dead and whose special talent is exorcism. She seems to know everything about the other world, yet nothing about our own. (Source: AniDB)

The story of the anime will revolve around Dreamcast, Sega Saturn, and Mega Drive, who have just enrolled in SeHaGaga Academy at Tokyo's Haneda Ōtorii station. They are given an assignment needed to graduate by a suspicious teacher, and to clear this assignment, the girls need to enter the world of Sega games. The girls must try their best to graduate without incident. (Source: ANN)