The year 20XX. Humans called “Concodes” and ultra-high-performance AI called “Codeman” team as buddies to compete within the card battle game ZENONZARD. People are going wild excitedly at the planet championships, THE ZENON.
One day, Souta Azuma, a mean highschool student, is challenged to a battle by a mysterious woman, Eilietta Lash. She reveals that she’s a Codeman which her intent is to team with Souta and participate within the ZENON. Souta reluctantly agrees. Souta and Eilietta’s first opponent seems to be the super-famous player Shion Saionji, who attends Souta’s school, and her buddy, Ash Claude