Drum Kōryū’s journey ignited when witnessing Valt Aoi’s Sword Valtryek unleash its Hyper-Flux state, sparking his resolve to forge Gamma Beyblade. Relocating to Japan, he trained under his uncle Tango Koryu of the Victories team, swiftly intervening in a clash over Taka Kusaba’s stolen Bushin Ashindra. Battles against Arman Kusaba awakened his ability to commune with his Beyblade’s spirit, unlocking early Hyper-Flux potential. His arsenal evolved from Ace, Glyph, and Rock Dragon Sting Charge Zan variants—destroyed by Arthur Peregrine—to upgraded Command Dragon Ignition’ and Master Dragon Ignition’, incorporating Delta Zakuro’s Master Layer Base. Later tournaments saw him wield Triumph Dragon Charge Metal 1A as a Lightning Beyblade and Gambit Dragon Karma-Q Zephyr-Q+Eruption-4’ as a Quad Beyblade, adapting tactics to new challenges. Optimistic and resilient, Drum’s clumsiness often led to accidental strategy leaks or traps, yet his tenacity drove relentless rematches against rivals like Arman and Arthur, fueled by a vow to elevate Dragon as the ultimate Beyblade. Synchronization with his Beyblade ignited blue flames in his cropped blonde hair, echoing predecessors like Valt Aoi through spirited dialogues with his spinning partner. Key battles at the Bey Carnival and Legend Festival pitted him against Fumiya Kindo, Lodin Haijima, and Gwyn Reynolds, showcasing strategic versatility with Dragon Launch, Spring Cannon, and team-synced Rainbow-Flux techniques. Later clashes against Bel Daizora and Pri Forsythe in the Lodestar Battle Tournament with Gambit Dragon underscored his ascent as a top Blader. Visually, his cropped blonde hair with blue highlights, green eyes, and red-yellow facial markings remained constants. Early attire—a white-collared shirt, blue jacket, red fingerless glove, and teal striped pants—transitioned to a yellow shirt and redesigned jacket in later appearances, mirroring his growth from earnest novice to seasoned competitor.