Gingka Hagane serves as the central protagonist in "Metal Fight Beyblade VS Taiyō Shakunetsu no Shinryakusha." During a summer beach vacation, he enters a Beyblade tournament with friends, defeating opponents like Kenta Yumiya and Tsubasa Otori through his competitive drive. The tournament is interrupted by a mysterious blader, Helios, who incapacitates bystanders and challenges Gingka. In their clash, Helios's Sol Blaze shatters Gingka's Galaxy Pegasus using the "Blaze Execution" move, delivering a shocking defeat that showcases unprecedented power.

Afterward, Gingka analyzes the loss at the B-Pit workshop, recognizing Sol Blaze’s ability to shift between Attack and Defense modes via Spin Track alteration. During Galaxy Pegasus's repairs, Gingka dreams of Pegasus’s spirit, which emphasizes resolving conflict beyond battle. Investigations with allies expose Sol Blaze as an ancient Orichalcum-class Beyblade responsible for Atlantis's destruction, heightening the threat’s severity.

Gingka confronts Helios at his base upon learning of injuries to mutual acquaintances. Helios’s grandfather Bakin reveals his plan: harnessing Pegasus and Sol Blaze’s clash energy to crash the asteroid Adonis into Earth, resurrecting Atlantis. Gingka attempts to dissuade Helios by detailing Sol Blaze’s destructive past, but Bakin intervenes.

In their rematch, Gingka employs refined tactics against Sol Blaze. When Helios unleashes a fire typhoon, Gingka counters with "Galaxy Nova," overpowering Sol Blaze and proving his growth. After Bakin’s plan is exposed, Helios allies with Gingka. They join forces against Bakin’s Dark Poseidon, aided by Kyoya Tategami, then travel to space. Combining Galaxy Pegasus and Sol Blaze’s power, they destroy Adonis, averting global catastrophe.

Throughout these events, Gingka upholds his conviction that a Beyblade’s strength flows from the blader’s spirit and bonds with others. He consistently prioritizes protecting lives over victory alone, facing overwhelming threats with unwavering resolve.