Giant is a member of the Hellhorde's torture division, holding the rank of a fourth-class combatant and junior torture officer. As her name suggests, she is a tall and physically imposing adult woman, with a stature and build that is nearly twice the size of the Princess. Despite her formidable size, her presence is anything but intimidating.

Her personality is defined by an overwhelming gentleness and warmth. Giant almost always wears a calm, soothing smile, and she possesses a deep, maternal kindness that makes her exceptionally well-liked by everyone around her. This caring nature is so central to her character that the Princess affectionately refers to her not as an interrogator, but as Mama Master.

In a story where torture takes many unusual forms, Giant's methods are unique. No one has ever witnessed her engaging in combat or performing any traditional act of interrogation. Instead, she is devoted to the maintenance and operation of the Hellhorde's bathhouse. She is a true expert in relaxation and rejuvenation, skilled in the arts of hot springs, saunas, therapeutic massage, and other wellness techniques. Her form of torture is, therefore, not pain, but overwhelming comfort and healing. By creating an environment of such profound relaxation, she inadvertently encourages the Princess to let her guard down and reveal secrets without any resistance.

Her key relationship is, of course, with the Princess, who holds deep affection for her and sees her as a source of emotional support. Giant's role in the story is that of a gentle caregiver, a stark contrast to the typical image of a jailer. Her development is subtle, as she remains a consistent and reliable source of comfort, reinforcing the series's theme of unorthodox and wholesome interrogation. Her notable abilities are not combative but domestic and therapeutic, centered entirely on her unparalleled mastery of bathhouse management and relaxation therapies.