OVA
Description
Meiru Melusine, also called Meiru Merujīne, is a dagon-vampire hybrid and an Atavist wielding primordial magic from the "Age of Gods." A minor figure in the main series and central protagonist of *Arifureta Zero*, her narrative importance stems from her creation and guardianship of the Sunken Ruins of Melusine.

She bears emerald-green wavy hair, sharp jade-red eyes, and a slender, curvaceous frame. Dagon traits manifest as fin-shaped ears and webbed extremities. Her outfit blends practicality and flair: a blue-and-white bikini, matching mini skirt, a cape-like white jacket, and a black-and-white tricorne. Her signature weapon, a saber with an ornate cross-guard, shifts into a liquid-metal whip.

Charismatic yet cunning, Meiru balances playful teasing of allies with ruthless psychological warfare against foes. Though mischievous and prone to sadistic games, she exhibits unwavering loyalty to comrades, risking her life for them while commanding a fiercely devoted pirate fleet. Her sharp intuition swiftly discerns trustworthiness, yet domestic chores and philosophical debates elude her. Once arrogant about her magical superiority, this confidence shatters after failing to resurrect Oscar Orcus’ siblings and Miledi Reisen with her restoration magic—a turning point that reshapes her resolve.

Her combat prowess merges hydrokinetic mastery—summoning tidal waves, pressurized blasts, and aquatic barriers—with the esoteric power of restoration magic. This ancient art lets her rewind time on objects, glimpse past or potential futures, and cast domain spells like "Stagnation," slowing time across a 50-meter radius. Enhanced by artifacts such as the "Limitless Whip Blade" and "Obsidian Spectacles" (modified by Oscar to fire solar lasers and analyze threats), her swordsmanship and whip techniques dominate battles.

Her bond with Miledi Reisen blends teasing banter with profound kinship, epitomized by her parting vow: "Remember, you’re not alone. Even if I die before you, I’ll be thinking about you for all eternity." Collaborations with Oscar refine her gear, merging practicality with lethal innovation.

Haunted by her inability to avert tragedies despite her healing magic, Meiru battles bouts of insecurity. Her dagon lineage roots her in the ocean’s depths, yet she sails as a pirate captain amassing wealth through cunning ventures. Beyond her direct actions, her legacy persists in supplementary tales where the Sunken Ruins challenge new adventurers, echoing her enduring influence.