Dandoh was playing a baseball game with friends Yuka and Kohei and hits a wild fly ball which crashes into the principal's potted plants. Rather than getting mad, the principal admires Dandoh's swing and introduces him to the world of golf. It's now an adventure in golf as Dandoh is under the watchful eye of a former pro-golfer. They enter a tournament together and play for a shot at the national championships. (Source: ANN)

In 2046, a revolutionary 80% shock-absorbing reinforced cardboard has been developed, rapidly transforming the world's exports. The reinforced cardboard would soon become the battleground for a popular children's hobby called LBX (Little Battler eXperience). Four years later, a boy named Yamano Ban who loves to play with LBX (although without a mecha himself) is given a case containing the model AX-00 by a mysterious woman. He is told that he now holds the hopes and despairs of mankind in his hands.

Six months ago, Lord Hugh Anthony Disward, also known as Huey, lost his eccentric grandfather, Sir Wesley Disward, who was a renowned collector of rare books. His grandfather's will states that, in order to inherit his manor and everything inside it, he must take guardianship over the Bibliotheca Mystica de Dantalian—an archive that contains forbidden knowledge—and also take care of a mysterious girl called Dalian. As Huey settles into the manor, an old rival of his grandfather's arranges a meeting with him. Dalian, knowing the rival to be Wesley's killer, tags along and discovers that the murderer is in possession of a Phantom Book—a cursed tome that Wesley tried to seal away. When the book puts the two in danger, Huey discovers that the Bibliotheca Mystica de Dantalian and Dalian are one and the same, and she entrusts Huey with the key to unlocking the knowledge stored within her. Together, Dalian and Huey seal the book away, and thus begins an unlikely partnership as they solve mysteries caused by other Phantom Books.

Huey Anthony Disward and Dalian trek to the land owned by Sergeant Callavos, where it is rumored that a Phantom Book may be located. With the help of a local herbalist named Thalia, the two reach a remote village and begin to confirm relevant information to their investigation. Although it has been reported that Callavos perished alongside his family in a gruesome fire six months prior, his daughter Florence has been sighted in a nearby forest—and is suspected of causing the blaze. To verify these allegations once and for all, Huey and Dalian travel to the lord's manor, only to uncover the truth behind a thorny past.