Wiene, a sentient monster of the Xenos species born within the Dungeon, defies her Vouivre heritage with humanoid traits—human legs replacing a serpentine lower body, silver-blue hair, and pale blue-white skin adorned with scattered scales. Amber eyes and a crimson Vouivre’s Tear gem embedded in her forehead mark her visage, the stone anchoring her sentience. Its removal triggers a feral transformation, amplifying aggression while leaving lingering traces of her empathetic self. Discovered in the Dungeon’s depths, she forges a bond with Bell Cranel after he rescues her, her childlike wonder and fear of rejection clashing with a world prejudiced against monsters. Despite saving a human child, she faces village hostility, deepening her longing for acceptance. She clings to Bell and Haruhime Sanjouno as surrogate parents, her innocence a fragile shield against societal scorn. Sheltered briefly by the Hestia Familia, Wiene departs upon overhearing the dangers her presence poses, seeking refuge with fellow Xenos like Lyd and Rei. Captured by the Ikelos Familia, a curse forces her into a destructive rampage on the surface, culminating in fatal wounds. Revived through forbidden magic by Fels and Bell’s intervention, she emerges with renewed resolve. Post-revival, Wiene confronts peril headlong: aiding Ryuu Lion despite exposure risks, challenging Ais Wallenstein to shield Bell. Her desperate act of shattering claws and wings to avoid harming Ais sparks a pivotal truce. She joins critical missions—the Knossos Operation and Deep Floors rescue—driven by loyalty to those who embraced her. Standing between 130-150 cm across adaptations, her diminutive frame underscores a childlike demeanor. Named from Bell’s nod to the Melusine myth, “Wiene” belies dragon-born prowess: Level 2 adventurer strength, swiftness, venom immunity, and keen senses. Her journey—from outcast to bridge between worlds—weaves themes of identity and coexistence, her enduring kindness and hard-won courage challenging divisions between human and monster.