Athora hails from Star Dragon World, a parallel dimension linked to Earth via the Buddyfight card game system. As Star Dragon World's representative, Athora competes in the World Buddy Masters tournament against other dimension champions, battling to determine the strongest Buddyfighter across worlds.

During the tournament, Athora temporarily teams up with human fighter Kanata Ouzora for a tag-team match against Gao Mikado and Batzz. This partnership showcases Athora's ability to work as part of a team, overcoming initial coordination hurdles with Kanata. Athora later aligns with the Thunder Empire faction, led by Batzz and Gao, joining their fight against antagonistic forces like the Chaos Control Corporation.

When confronting the Chaos Control Corporation's Chaos Geargod entities, Athora evolves through the Overturn phenomenon into "Heavenly Crystal Dragon Aldo Athora," a powerful enhanced form. Athora remains part of the Thunder Empire coalition during subsequent battles against the Geargod series and other threats, contributing to the faction's strategic operations.