Jinki Mukae, a driven organizer behind tournaments designed to crown the strongest cardfighter, spearheads the pivotal "Deluxe" event. His actions stem from a promise to fulfill the final wish of his late brother, Shingi Mukae, who envisioned crafting the "ultimate fight" through high-stakes clashes. This mission fuels Jinki’s relentless orchestration of battles that push participants to their strategic and emotional limits.

Initially wielding decks inherited from Shingi, Jinki employed soul-charging tactics and order card recycling, leveraging units like Bist Aiyatvas and Griphogila for adaptable strategies. His tactical evolution emerged during the Destined Showdown when he embraced the protective ace unit Destined One of Protection, Alden. This shift—relying on recalling rearguards to hand for enhanced flexibility—signaled his transition from upholding Shingi’s legacy to forging his own path toward their shared ambition.

Jinki’s narrative prominence solidified through decisive victories, such as his triumph over Masanori Iseki, showcasing his competitive acuity. Beyond tournaments, he clashes with factions like the Uniformers, opposing their homogenized vision of cardfighting by championing individuality and battles imbued with personal meaning—principles echoing Shingi’s ideals.

His deck’s evolution mirrors this journey: modifying Shingi’s original design while preserving its soul-driven core, Jinki balances homage with innovation. Each strategic choice underscores his belief that cardfighting transcends rivalry, serving instead as a conduit for self-discovery and honoring legacy.

Interactions with figures like Akina Myodo and Deluxe contenders position Jinki as a narrative linchpin, provoking fighters to scrutinize their motivations. By intertwining personal history with overarching conflicts over purpose and identity, he bridges intimate struggles with the series’ broader existential themes.