TV-Series
Description
Shizu Onuma descends from a lineage bound by generations of service to the Makishima family. Her grandfather, Yohei Onuma, a devoted retainer to the Makishimas, raised her after her parents' death, instilling unwavering loyalty to Agito Makishima—a bond formed in their shared childhood. This loyalty eclipses all other facets of her existence.

To further Agito's cause, she voluntarily underwent Alfred Hekkaring's process, emerging as the first female proto-zoalord, Griselda. This transformation empowers her to command the Libertus—bio-engineered warriors impervious to Chronos' control—within Agito's resistance faction, Zeus' Thunderbolts. Though it drastically shortens her lifespan, it amplifies her combat prowess and leadership capabilities.

In her human state, Shizu exhibits kindness and gentleness. Yet when advancing Agito's interests, she reveals formidable ruthlessness. She stands 159 cm (5'2") with black hair and brown eyes, weighing 56 kg (124 lbs). As Griselda, her battleform reaches 183 cm (6'), granting enhanced strength, speed, and durability surpassing ordinary zoanoids. Her primary weapons are two razor-sharp, sheet-like blades affixed to her head. These lie flat like hair or a cape when inert but extend during combat, often unleashed through rapid spinning maneuvers.

Griselda's abilities encompass:
- Psychically directing and coordinating Libertus forces on battlefields.
- Blocking or overriding other zoalords' control waves to shield Libertus from enemy influence.
- Healing severe injuries in Libertus through physical contact, though its efficacy on non-Libertus zoanoids remains unverified.

Her relationship with Agito is defined by absolute subservience; every action serves his ambitions. Their closeness and mutual reliance evoke a husband-and-wife dynamic, though its precise nature remains unexplored in official media. She functions exclusively within Agito's resistance as his steadfast enforcer and lieutenant.

Her character arc emphasizes sacrifice for Agito's objectives across all adaptations, with no documented deviations or alternate storylines.