Gueira

Gueira is patient and caring in his interactions with Prushka. He participates in her upbringing rather than treating her merely as another resident of Ido Front, helping teach her and spending time with her as she grows.

His characterization is largely conveyed through Prushka's childhood memories. These scenes show that life around Bondrewd includes genuine everyday affection alongside the horrific research conducted at the facility.

Gueira remains an Umbra Hand and therefore part of Bondrewd's organization, but the series does not provide enough information about his earlier life or private motivations to establish a fuller independent personality.

Gueira is an experienced delver capable of functioning at Ido Front in the Fifth Layer. Like the other Umbra Hands, he wears specialized equipment suited to the extreme environment.

He is part of a group whose members possess different roles and equipment, although canon does not give Gueira a signature combat Artifact comparable to Gyarike's flamethrower.

As an Umbra Hand, Gueira belongs to the network of people connected to Bondrewd through the Special Grade Artifact Zoaholic, which allows Bondrewd to distribute his consciousness among other bodies.

Gueira's most significant appearances come through Prushka's childhood. After her arrival at Ido Front, he helps care for her while Bondrewd occupies the role of her father.

His presence gives Prushka's upbringing a domestic dimension that contrasts sharply with Ido Front's function as a research facility. The memories of her life there help explain why Prushka sincerely regards the base as her home.

Gueira otherwise remains part of the Umbra Hands supporting Bondrewd's operations and research.

Prushka is cared for by Gueira during her childhood at Ido Front. He teaches and spends time with her, becoming a familiar figure during her upbringing.

Bondrewd commands Gueira and the other Umbra Hands. Their relationship is complicated by the Zoaholic, through which Bondrewd can spread his consciousness among members of the organization.