Moeka Kiryū’s existence is defined by isolation and an aching need for validation, forged through childhood neglect and parental abuse that left her socially fractured and suicidal. A lifeline emerged in June 2006 when FB—a SERN operative—recruited her into the covert Rounders, anchoring her loyalty to his authority as a substitute for self-worth. Her communication fractures into dual realities: a muted, anxious presence in face-to-face interactions versus a digitally crafted identity brimming with kaomoji and slang, revealing her reliance on textual barriers to deflect vulnerability. Timelines reshape her purpose. In the Alpha Attractor Field, she serves as SERN’s weapon, obeying FB’s orders to kill Mayuri Shiina—an act that fractures Okabe’s world and later unravels her own trauma when FB’s abandonment drives her to suicide. The discovery of her IBN 5100 D-mail exposes her deeper complicity in SERN’s timeline conquests. Gamma diverges: rescued by Okabe, she becomes his Rounder agent, balancing tactical precision with lingering fragility. Her loyalty shifts to Okabe as a surrogate family, yet her methods remain ruthless, evident in missions against Europol. The Delta timeline and *My Darling’s Embrace* spin-off unveil latent creativity. She authors a novel mirroring her bond with Okabe, tentatively embracing vulnerability as lab interactions chip at her emotional armor. Moments of connection surface, though fears of worthlessness linger—ghosts of lifelong rejection. FB’s betrayal reshapes her narrative. Revealed as Yuugo Tennouji, his manipulation to secure the IBN 5100 ends with him shooting her, forcing confrontation with her role in Mayuri’s cyclical deaths. Final acts often intertwine apologies to Okabe with fractured hopes for absolution. *Steins;Gate 0* casts her as a conflicted operative. While aiding efforts to avert World War III, her SERN ties blur allegiances. Missions against figures like Leskinen showcase strategic ferocity, yet flickers of protectiveness toward Okabe hint at unresolved longing for belonging. Physically, her pale complexion, light brown hair, and slender frame mirror her withdrawn demeanor. Professional attire—white shirts, black skirts—camouflages inner chaos, while Rounder missions clad her in tactical gear, reflecting her duality as both enforcer and casualty. Moeka’s arc orbits desperation for purpose—whether as SERN’s pawn, Okabe’s ally, or a tentative author—each identity tethered to the primal need to be needed. Her journey maps the corrosive power of manipulation and the fragile redemption found in fleeting acceptance.