Humanity had invented fortified cardboard in the year 2046.The fortified cardboard had revolutionized the world market. It also served a greater purpose for reviving the cancelled distribution of the miniature hobby, Little Battlers Experience (LBXs). 3 years later,the story focuses on Ban Yamano who was LBX battling alongside his best friends, Kazuya Aoshima and Ami Kawamura in the 2050 LBXs World Tournament,Artemis .The episode goes back in time before the event, when Ban was on his way to the Kitajima Model Shop.There, he saw a rare, unscheduled released armor frame kit, Achilles. Despite his low allowance and his mother's objections against LBX, Ban wanted the kit very much. Before going home, Ban comes across a mysterious woman chased by 3 unknown pursuers. The woman gives Ban a mysterious metal suitcase without any instructions. It is later revealed to contain an LBX model, AX-00.

After a recap of the first episode's events, Ban wakes up in his room and looks at AX-00 and a flashback occurs to when the mysterious woman gave him the suitcase. He then is seen eating breakfast and, expecting his mom to disapprove of his new LBX, he was surprised when she said that he was allowed to keep it so long as he becomes "strong" and doesn't lose to anyone. Ban then goes to the Kitajima Model Shop and is surprised that the store's owner, Kojirou, has never seen a model like AX-00 before. After conversing about how Ban got his hands on the model, the episode switches to the Innovator's hideout where Dr. Yamano talks to Eiji Yagami about the deathlock system-if anyone but the intended user of the LBX tries to open it, a poison will be dispersed, killing the infiltrator and destroying the hidden data. Thus, Eiji decides that he will defeat Ban and retrieve the data. Back in the model shop, the group discusses how they should handle the AX-00 information.

Ban is challenged by Gouda to an LBX battle. In order to make it "fair", Gouda lets him use the Achilles armor and confidently tells Ami and Kazu that they can battle against him as well as a handicap. Seeing that they have no other choice, Ban accepts his challenge in order to protect Achilles. It is also revealed that Gouda is doing this under someone else's bequest. While the trio are preparing for the battle against Gouda, they decide to use a hit-and-run strategy against Hakai-O since it specializes in close quarters combat. The plan seems to work for a little while, until Gouda shows them his LBX's true abilities by first activiting the Gao Cannon and swiftly destroying Kazu's Warrior. Without their teammate, Ban and Ami are in a pinch. The first blast from Hakai-O's cannon was a demoralizing tactic, but they don't give up. In fact, Kazu finds out Hakai-O's Achilles Heel.

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.

The episode begins with a display of Kamiya Craft's newest LBX, Assassin, and its sniping capabilities. Yoshimitsu Kaidou, Tougorou Kamiya, and Muneto Sawamura are all pleased by the results of the small exhibition. They expect Jackal, the assassin, to perform his task without any trouble and kill the Prime Minister. Elsewhere, Takuya and Ren converse about the assassination attempt on Prime Minister Sousuke Zaisen. They decide to ask Ban, Ami, and Kazu for their assistance. Before they talk about the details of the mission, Kazu is given a new LBX, Hunter, sparking a glimmer of interest in his eyes. Ban and friends accept the mission, agreeing to the terms of it being a secret and that no one must find out about it. The next day, the trio show up to perform their task, but Kazu doesn't seem to be ready or in the right state of mind.

Although initially overwhelmed with the idea of finding an assassin in a large crowd of people, Kazu, Ami, and Ban review the plan for finding the fiend with Takuya in a van. The latter tells them that Seeker already has agents in the field. Thus, the trio search around by foot and with their LBXs, trying to figure out where would be an ideal sniping position. After carefully examining the options in such a crowded place, Ban realizes that it is probably for an assassin to snipe through a glass building. Thus, he and his friends approach the building that Jackal is in, only to find Deqoos blocking their path.

This episode begins wn the professor is kidnapped by the Innovators and the Innovators announce a fake news that the professor is dead.With a flashback 5 years ago; Professor Yamano and Rina were in an airplane that was supposed to be flying to the Neo Technology Summit. Back to the present,in Blue Cats Coffee,Takuya announce to Ban,Ami and Kazu,that the professor is not dead. The Innovator capture Professor Junichirou for his intelligence to make the Eternal Cycler. Eternal Cycler is a machine that gives Infinite energy to machines. If Eternal Cycler falls to the wrong hands, it can lead to the destructon of the world. As soon as Ban and friends leave the cafe, Takuya told Hiyama that he found where the Professor is. He was kept in Tenshi no Hoshi (Angel Star).

The episode begin with the protagonist,a young 14 year old male LBX player named Ban Yamano,heading to the Tokio Sia Department Store for the announcement of the latest LBX model manufactured by Tiny Orbit. A mysterious boy appeared and is shown playing an arcade game of LBX against a young boy.He won the match,thus achieving his twenty consecutive wins.Later,he claims his prize,the limited edition Space Hero Senshiman custom figure at the counter.When he was about to leave,the young man challenge him for a rematch but he refuses,thus resulting in making the young man angry but fortunately a man stopped the young man from starting a fight.Soon,he accidentally bump into a mysterious man and drop his prize. The mysterious boy later is seen sitting on a bench,opening his prize,checking whether his figure was alright.He was shocked when he found out that there is an LBX in the box.He later tried to used it but couldn't control it properly.He then met Ban after Perseus almost hit Ban.

Arata Sena finally arrives and leaves a boat and accompanies Hikaru Hoshihara towards Kamui Daimon Comprehensive Academy. They are later introduced to the class by Reina Mito and is led towards the shocking Second World underground. Haruki Izumo then arrives and gives the two a temporary LBX and they start a match on the underground LBX battlefield.