Higashi Setsuna, emerging as Eas, evolves from a formidable antagonist within Labyrinth to a pivotal force in her narrative. Tasked under Moebius’s authority, she executes missions with ruthless efficiency, her icy demeanor masking emotional detachment as she clashes repeatedly with protagonists. Central to her arc is a gradual ideological shift sparked by Momozono Love’s unyielding compassion, which fractures Eas’s unwavering loyalty. Her trajectory culminates in a life-sacrificing act during a clash with Cure Peach, triggering the Nakisakebe card’s destructive power. Divine intervention by Akarun and Chiffon resurrects her as Cure Passion, reborn into civilian life as Setsuna Higashi. Now residing with the Momozonos, she navigates guilt and adaptation—attending school, joining a dance group, and reconciling her violent past with newfound humanity. Her visual identity transforms across phases: as Eas, silver hair and crimson eyes pierce beneath militaristic leather garb accented with red; as Setsuna, purple-tinted hair and casual wear soften her presence, adorned by Love’s clover necklace. Cure Passion’s rebirth manifests in cascading pink hair and a red-black dress laced with clover patterns, crowned by a tiara and heart accessories. Enhanced forms like Cure Angel Passion amplify her symbolism—angelic wings unfurl, rainbow-hued attire shimmers, and a five-leaf clover emblem underscores unity. Personality shifts from tactical ferocity to quiet contemplation, shadowed by remorse yet steadied by burgeoning empathy. Social awkwardness surfaces in mundane interactions, contrasting her combat prowess. Bonds once fractured—like her rivalry-turned-sisterhood with Love or tense reconciliation with Westar—mirror her internal duality: a weapon reforged into a protector. The film *Fresh PreCure the Movie: The Kingdom of Toys has Lots of Secrets!?* sees her ascend to Cure Angel Passion through collective hope, her form radiating elongated wings and a sleeker silhouette. Combat techniques like "Happiness Hurricane" and "Loving True Heart" channel the Passion Harp’s melodies into devastating light. Etymology weaves through her identity: "Higashi" (east) mirrors her alias Eas, while "Setsuna" (moment/sadness) echoes her fractured selfhood. Cure Passion’s fruit-themed moniker aligns with series motifs, her Linkrun device distinctively positioned on the right hip. A documented aversion to green peppers adds grounding quirkiness amid cosmic battles.