The OVA will be focus on when Kujaku Nijou first entering group, which occurs one year before the main anime begins.

Within one's Book of Fate is their destiny. Written by the mysterious Story Tellers, these books decide every small detail of one's life. Some Story Tellers, however, choose to interfere with the stories of others rather than write their own. These malevolent beings are known as Chaos Tellers, who seek to ruin stories by overwriting the Books of Fate. Ex, Reina, Tao, and Shane were born with blank books. Ostracized by society due to this abnormality, they abandon their respective stories in search of better lives. In the vast unknown, they encounter famous fairy tale characters such as Cinderella, Momotarou, and Snow White. All the while, they work to subdue the Chaos Tellers and return peace and order to the stories. [Written by MAL Rewrite]

East Force meets West Force and all Hell breaks loose. The Solonoids, that lovable race of female warriors, are at it again, fighting amongst themselves. During a heated battle, however, it looks like the leaders of the two factions have hung their warriors out to dry. In the middle of all this fighting and chaos, East Force detects a transmission from an unidentified planet. The Gall Force gals leave their posts to go. Lufy, the West Force's Ace Pilot, who is after Rabby, follows them to the planet.

A special two-part episode that aired between episodes 24 and 25 of Dr. Slump: Arale-chan.