Mira Fermin, known as Mira Clay, is a 16-year-old Vestal who leads the Bakugan Battle Brawlers Resistance, a group she founded after witnessing Alpha Hydranoid’s torture—an event that exposed Bakugan’s sentience. Driven by her resolve to liberate enslaved Bakugan and reconnect with her missing brother, Keith Fermin, she later discovers his identity as the Vexos commander Spectra Phantom. Her strained relationship with her father, Professor Clay Fermin, deepens when he allies with the Vexos, further isolating her.
Sporting short orange hair and sapphire-blue eyes, Mira’s attire during her New Vestroia missions includes a silver jacket, red jumpsuit, mismatched boots, and blue earrings. Her later look features a white track jacket over a blue dress, longer hair, lipstick, and a yellow motorcycle helmet. She carries a locket with Keith’s photo, a constant reminder of her fractured family.
Combining stubbornness with tactical ingenuity, Mira’s tomboyish demeanor often sparks clashes with teammates like Ace Grit, yet her leadership sharpens allies like Baron Leltoy. Loyalty to Keith compels her to infiltrate the Vexos as a double agent, though guilt plagues her deception. She navigates conflicting roles with ease, adopting personas ranging from a flirty distraction to a compassionate figure, even showing empathy toward foes like Mylene Farrow.
Key turning points include her growing suspicion of Spectra’s identity, confirmed when he unmasks during a duel mediated by Gus Grav. Challenging Keith to reclaim his past self, she loses to his enhanced Cyborg Helios, forcing her into reluctant servitude. She covertly undermines the Vexos, intentionally forfeiting a match to aid Dan and Ace. Post-Vexos, her reconciliation with Keith remains tense, shadowed by his past allegiance.
In later missions, Mira analyzes threats like the Nonets and Mechtogan, pilots helicopters, and engineers battle suits. She fights adversaries such as Prince Hydron and Mechtavius Destroyer, whose annihilation of Bakugan City is reversed through time manipulation, enabling her to help defeat the entity.
Her partnership with Subterra Bakugan Magma Wilda—evolved from Thunder Wilda—and Trap Bakugan Baliton anchors her battles. Adapting to evolving combat, she later teams with Roxtor. Balancing leadership, personal stakes, and fractured family bonds, her journey centers on protecting Bakugan while mending the scars of betrayal and loss.