When Hiro Enryuu, a regular elementary school student, is unexpectedly transported to the realm of the 'Dragon Collection' game, he enters the fantastical world of Dragon Earth. Here, gods, humans, and monsters coexist harmoniously. As a Dracolle Battler, Hiro wields a magical Grimoire and cards to summon creatures and seek out dragon-infused treasures. Embracing his new role, Hiro embarks on a thrilling quest alongside newfound companions, aiming to rise as a renowned Dragon Master amidst this enchanting universe.