Neruru is a secondary character from the anime Clevatess, a young woman who was born into slavery and endured a childhood of profound suffering. She was raised in a slave camp known as the Crows and lost her mother when she was twelve years old, leaving her to face years of physical and emotional abuse. Before her transformation, she appeared worn and battered, with long messy hair, missing teeth, and injuries from the violence she had endured. Her personality was shaped by this trauma, making her deeply timid, hesitant, and humble in her interactions with others. Despite this, she possesses a core of immense resilience and a fierce protective instinct that emerges when those she cares about are in danger.

Her life changes dramatically when she becomes involved with the demon king Clevatess and the undead heroine Alicia. During a confrontation, Neruru is mortally wounded while protecting the infant Luna, the royal baby. She is resurrected by Clevatess using the flesh of a troll, an act that grants her a new body and a new purpose. Her appearance is rejuvenated after this rebirth: she gains short wavy two-toned hair, red at the ends and white at the crown, brown eyes, and a slightly plump build. The front of her hair takes on a color reminiscent of troll fur, a lasting mark of her resurrection. Along with her renewed appearance, she gains extraordinary physical strength, easily carrying the entire group’s luggage while others struggle with much smaller loads.

Following her resurrection, Neruru assumes the role of wet nurse and primary caretaker for Luna. This becomes her central mission and motivation: to provide the maternal care, stability, and affection that the baby needs. She becomes the emotional anchor of the unlikely family that forms around Clevatess, Alicia, and Luna. Her presence humanizes the group, offering warmth and normalcy in a world filled with monsters, magic, and conflict. She acts as a bridge between the awkward demon king and the reluctant undead heroine, softening the tensions between them and helping them connect through their shared care for the child. Her own tragic history includes having given birth to three children who all died shortly after birth, a loss that makes her devotion to Luna even more intense and personal.

Neruru undergoes significant development over the course of the story. Her speech evolves from hesitant and submissive, reflecting her years of oppression, to more confident and fluent as she gains self-assurance and a sense of belonging. Her transformation is both physical and emotional, moving from a life of despair and brutality to one of purpose, love, and hope. She represents the idea that kindness and humanity can endure even in the darkest circumstances, and her role as caregiver and emotional center of the group makes her a vital character despite her lack of combat prowess. Her notable abilities include her surprising physical strength, her skill as a nurse and caretaker, and her capacity to bring emotional stability to those around her.