Frozen is a towering humanoid entity sculpted from ice, with pale azure skin, jagged turquoise markings across his face, and wild, windswept blue hair. Crystalline spikes jut from his left shoulder and right wrist, mirroring his partner Freezen’s opposing asymmetrical protrusions. Both possess piercing yellow eyes and formidable physiques, embodying their role as relentless enforcers within the Dotsuku Zone under the Evil King’s command. Proudly self-proclaimed as the "strongest combination," they wage a ruthless campaign to eradicate warmth, targeting Hinata—a phoenix whose life-force sustains the Garden of Clouds and global equilibrium.

Driven by an existential hatred for heat, Frozen employs cunning psychological warfare, preferring to fracture alliances rather than engage head-on. In their initial assault, he and Freezen ambush Hinata, summoning a Zakenna and encasing the Garden in glacial prisons. By freezing the hearts of Cure Black and Cure White, they engineer internal strife, yet their arrogance and mutual recrimination during setbacks unravel their schemes. Empowered by Hinata’s phoenix energy, the Cures exploit this discord, shattering Frozen’s icy grip.

Revived in a subsequent clash by Black Hole’s influence, Frozen reunites with Freezen to challenge Cure Melody and Cure Rhythm aboard a sunken vessel. Unleashing their "Freezing Blizzard" technique—a coalescing storm of ice capable of devouring entire terrains—they test the Cures’ resolve. However, their reliance on frigid brute force and manipulative tactics again falters against unified adversaries.

Though merciless and shrewd, Frozen’s loyalty to his partnership borders on fanatical, their synchronized assaults masking a fragile synergy prone to collapse under duress. Unlike other villains, they reject monstrous metamorphosis, clinging instead to their glacial prowess and twisted camaraderie—a duality that seals their recurring defeats despite their chilling potential.