The Cursed Golden Knights
The episode begins with Takuya Uzaki and Ren Hiyama talking about AX-00 being equipped with Achilles and being under Ban's ownership and about the Innovators. The next scene shows Ban running in order to join Ami on the way to school. As they enter their classroom, they hear Ryuu bragging about his new LBX, Buld Kai, and about him beating Gouda. While they could have said that he was lying, Ban and Ami decide to play along, with Mika commenting on Ryuu being a lying braggart. As karma would have it, one of their fellow students requested for Ryuu to take back an LBX that Gouda stole. Ryuu responds by lying and saying that he'll do it after coercing from Ami. After school, Ami and Ban decide to look for Kazu. Meanwhile, Kazu is walking around, thinking about his destroyed LBX. He meets a mysterious merchant who offers to sell him a rare LBX, Egypt. Kazu is then hypnotized and controlled by Egypt. Much later, Ami and Ban are walking by Kasenjiki Bridge when Kazu challenges Ban to an LBX battle.
Aired 16/03/2011EP 4 - The Cursed Golden Knights
LBX: Little Battlers eXperience
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.