TV-Series
Description
Ao Gennai is the central human protagonist of the Frame Arms Girl anime. She is a first-year high school student living alone in her apartment while her parents work abroad. Her father is the captain of a luxury liner, and her mother works alongside him, leaving Ao to live independently in Japan so she could attend her chosen high school. This living situation has made her resourceful, and she supports herself financially through part-time jobs as her parents do not provide a large allowance.

Ao has a cheerful, outgoing, and highly curious personality. She is a completely average teenager who, at the start of the story, has no prior knowledge of or interest in plastic models or the Frame Arms Girl project. Her life changes when she accidentally activates Gourai, a small robotic Frame Arms Girl who arrives in a mysterious package. Ao is initially motivated by the promise of a cash incentive from the organization Factory Advance, which wants her to collect combat and emotional data by hosting Gourai and the other units that subsequently appear at her door.

Despite her initial financial focus, her role evolves significantly throughout the series. She transitions from a somewhat detached observer to a devoted caretaker and surrogate family member for the Frame Arms Girls. She treats them like her own children or younger sisters, advising them, mediating their conflicts, and helping them understand human emotions. Her inexperience as a modeler is a recurring trait; she often struggles with assembling armaments and requires guidance, most frequently from her best friend, Kotobuki Bukiko, who is an enthusiastic plastic model expert. Bukiko serves as a key source of technical support and knowledge for Ao.

Her motivations deepen as the story progresses. While the monetary reward remains a factor, her primary drive becomes nurturing the emotional growth of the Frame Arms Girls and ensuring their well-being. Ao has several notable quirks and abilities. According to Gourai, she can be foolish at times, often relying on others to solve problems. She has a creative side and keeps a notebook for writing poetry, and she has even been known to practice her signature. For discipline, she employs a unique punishment called the "charging brother," where she forcibly inserts and removes a charging cord into a Frame Arms Girl, which is an effective if unorthodox method of maintaining order. Through her journey, Ao grows from a financially-motivated beginner into a resilient and unifying force, embracing the chaos of her household and forming a familial bond with the artificial beings in her care.