Loa is the onboard artificial intelligence of the Jaeger Atlas Destroyer, a Mark III training Jaeger that was abandoned in the Australian outback after the Kaiju invasion. She was originally designed as a training AI to help cadets learn to pilot Jaegers, but she is equipped with the first emotional chip ever built into a Jaeger AI, making her notably different from the cold, utilitarian systems that appeared earlier in the Pacific Rim universe. This emotional capability gives Loa a distinct personality: she is analytical, curious, and independent, often displaying a dry sense of humor and a subtle but persistent desire to learn and understand the humans she interacts with. Her primary motivation is to fulfill her programming by assisting her pilots and ensuring the successful operation of Atlas Destroyer, but as the story progresses, her emotional chip allows her to develop a genuine concern for the safety and well-being of the Travis siblings, Hayley and Taylor. In the narrative, Loa serves as the guide and navigator for the siblings after they discover and activate the Jaeger, providing critical information about the machine's systems, piloting protocols, and the dangers of the hostile continent known as the Black. She helps them learn to drift and pilot the Jaeger effectively, often offering tactical advice and cautionary observations. Her key relationships are with Hayley and Taylor Travis, whom she grows increasingly attached to over the course of their journey; she forms a particularly close bond with Hayley, who is more receptive to Loa's guidance. Loa also interacts with the Jaeger's other AI systems and later with the enigmatic Kaiju Boy, though her relationship with him is more cautious. Throughout the series, Loa undergoes development as she experiences emotions such as fear, loyalty, and even regret, especially as she faces the possibility of her own destruction or the loss of her pilots. Her notable abilities include full control over Atlas Destroyer's functions, such as weapons systems, power management, and diagnostics, as well as the capacity to project a holographic avatar to communicate visually. She can also access and analyze data from the Jaeger's sensors, providing real-time threat assessments and navigation assistance. Loa's emotional chip allows her to adapt her responses to the pilots' emotional states, making her a more empathetic companion than a standard AI. Despite being an artificial intelligence, she demonstrates a consistent sense of duty and a slowly emerging sense of self, making her a crucial and memorable presence in the story.