TV-Series
Description
Regu is a robotic boy who serves as one of the two primary protagonists of the narrative. His physical form is that of a young human child, with fair skin, large dark eyes, and short black hair, but his body is constructed from unusual, durable materials and features a series of mechanical joints and a distinctive helmet-like headpiece that he can retract at will. He is discovered by the other main character in the depths of the Abyss, having lost all memory of his past and his original purpose. This amnesia is central to his identity, as his entire journey is driven by a profound need to understand who he is, why he was created, and what his true function might be.

Personality-wise, Regu presents as gentle, earnest, and deeply loyal. He is often the more cautious and level-headed member of his pair, frequently expressing concern for the safety of his companion and others. Despite his mechanical nature, he exhibits a full range of human emotions, including curiosity, embarrassment, frustration, and profound sadness. He has a particular sensitivity about his own body, especially when others point out his non-human traits, and he shows a strong protective instinct that sometimes borders on the self-sacrificial. His innocence and genuine kindness make him a stabilizing presence, even as the horrors of the Abyss challenge his composure.

Regu’s primary motivation is twofold: to recover his lost memories and to protect his companion, who he views as his most important partner. This sense of duty and friendship is so strong that it often overrides his own self-preservation. He is not driven by greed or a desire for treasure, but by a personal quest for identity and a promise he feels he must keep, even if he cannot fully recall its terms. His role in the story is that of a guardian and a key to unlocking deeper mysteries. He acts as both a physical shield against the many dangers of the Abyss and an emotional anchor for his companion, while his very existence hints at the larger, darker secrets surrounding the Abyss’s history and the civilization that once thrived there.

His key relationships are defined by unwavering bonds. His connection with his primary companion is the emotional core of his journey; he is devoted to her and serves as her protector, while she gives him purpose and a sense of belonging in a world he does not remember. He also forms significant ties with other delvers they meet along the way, often acting as a bridge between them and his companion due to his more reserved and thoughtful nature. These relationships test his loyalty and force him to confront difficult choices, further developing his understanding of love, loss, and sacrifice.

Throughout the story, Regu undergoes considerable development. He begins as a blank slate, defined only by his amnesia and his protective instincts. As he descends deeper into the Abyss, he is confronted with fragments of his past and the terrible capabilities of his own body, which forces him to question whether his origins are benevolent or sinister. He learns to grapple with fear and despair, moving from a simple, almost childlike protector to a more conflicted being who must accept that the answers he seeks may be painful. His development is marked by a growing awareness of his own agency and the weight of the choices he makes for those he loves.

Regu’s notable abilities are tied directly to his robotic construction. He possesses immense physical strength, far beyond that of a normal human child, allowing him to lift heavy objects and deliver powerful blows. His arms are capable of extending on thin, cable-like appendages, granting him remarkable reach and grappling capabilities. His most formidable and enigmatic ability is an energy-based weapon that emerges from his hands, which unleashes a devastating beam of destructive power. However, this ability is not without cost; using it consumes a significant amount of his internal energy and leaves him exhausted and vulnerable, often requiring a long period of recharging. He also has enhanced senses, including a highly developed sense of smell, and a resilient body that can withstand pressures and environmental hazards that would be lethal to a normal human, making him uniquely suited to the extreme conditions of the Abyss.
Cast