Meet Orega Fire, the young Oreca battle-loving main character. One day while playing Oreca, a herd of Mashed Tomatoes suddenly appears in the sky! Not only that, the monsters on the cards kids were playing with start to inexplicably vanish. A strange occurrence in an otherwise peaceful town!

During the battle with the Red Dragon, Warrior Tanta refuses to listen to Fire and continues to attack without command! Although Fire is clearly vulnerable, he used his own body as a shield to protect Tanta and the others. Even Tanta is moved by this act of camaraderie...

Fire happily reminisces about winning the battle. When suddenly, Pandora appears again and another battle begins! This time the opponents who stand before Fire are the Black Knight Gebulg and the Black Flame Warrior Bahn! Tanta just can’t match the Black Flame Warrior’s strength. Tanta who strongly seeks power gets his hands on the enemy’s “Halberd of Darkness”...

Although his entire body is shrouded with a dark aura, Tanta successfully wins against Bahn. However, Tanta is swallowed by the power of darkness and transforms into the Dark Warrior Tanta as he leaves with Gebulg. Bahn is left behind but he regains his regular form as the Fire Warrior Bahn and joins Fire’s team...

Fire fiercely battles against the fire summoner Heat, Robot Type II, and Usamiko. Heat then summons Girime who paralyzes everyone, but despite that Fire successfully gains another win and Heat subsequently joins Fire’s team. Meanwhile, a curious rumor spreads among the students about ghosts haunting the school at night.

Fire and his friends encounter mysterious circumstances while visiting their school at night. After a few bizarre run-ins, they find Pandora! Death Mort and the Necromancer Tsukuyomi appear as well and it’s time to battle! Thanks to Bahn’s attacks, for a moment it seemed as though Fire was victorious, but then Mort and Tsukuyomi combined and turned into Ashiyura. The battle isn’t over, yet!

After Kerogon causes some trouble for Fire at school, he’s made to stay home. However, Kerogon finds Fire’s “Fire Dragon Egg” card that he’s forgotten at home and decides to bring it to Fire. Kerogon’s about to have a long day!

The Raging Serpent Mushuf’shu suddenly appears in front of Fire and his friends! Mushuf’shu’s powerful moves overwhelm Fire! But then, thanks to Kerogon’s suggestion, Fire uses the Fire Dragon Egg and summons the Red Dragon!

Fire encounters Tanta who has been possessed by the Black Knight Gebulg’s and the Halberd’s dark powers. The battle leaves everyone weak, including Fire himself. When all of the sudden, Data steals the Halberd of Darkness away from Tanta! Data’s wish to be stronger like Fire helps to break the Halberd’s spell!

Fire and the others continue practicing Oreca battles at the bowling alley when Pandora shows Fire a scene from the Oreca realm where Swordsman Dante and Fallen King Saliel are battling. Fire becomes enraged after watching Saliel fight unfairly. Pandora introduces Fire and the others into Dante and Saliel’s battle! However, Fire struggles with Saliel’s unmatched strength!

Fire, Data, and Gantetsu form the Oreca Boys to fortify their strength in order to win against the Demon King Mus. Meanwhile, Gantetsu asks Data to teach him how to Oreca battle and head towards the Dojo to train. When suddenly, Pandora shows up in a training uniform! After bringing them to the bowling alley, Pandora claims to give the both of them cards if they’re successful in training. Then, the Demon Queen Riviere and Demera appear!

Data and Gantetsu continue to fight the Demon Queen Riviere at the bowling alley. Gantetsu was almost overwhelmed by Riviere’s strength, but Data’s words helped push him to use an ultra EX attack for a come-from-behind victory! They successfully won the battle against Riviere and Demera but there’s no time to celebrate; the Demon King Mus suddenly appears!

Fire suddenly finds himself facing the Demon King Mus! The battle begins as soon as they switch their location to the demon castle. Meanwhile, the Lamanders are attacking children in Fire’s home town! Both the human realm and the Oreca realm are affected by Mus’s sheer strength!

Fire is overwhelmed when faced with the intensely powerful Demon King Mus. Even the Blazing Knight Bahn is defeated by Mus’s EX move! Even so, Fire refused to give up and his courageous spirit caused Mini Dragon to evolve! Will Fire be able to defeat Mus?!

After winning the battle against the Demon King Mus, Fire and his friends went back to their normal elementary school lives and one day headed towards the beach. That’s when Pandora appeared! Fire and his friends are ecstatic at the idea of having real Oreca Battles again! Pandora summons Kanicrab for them to battle as a new chapter unfolds!