Sae exists as the youngest member of an artificially constructed family, forged through brainwashing techniques and implanted memories within a simulated reality experiment. Her psyche manifests as intensely introverted and withdrawn, channeling all communication through a hand puppet that serves as both her voice and a contentious counterpart, with whom she routinely disputes.

She maintains minimal contact with others, retreating into self-imposed solitude. Her confined habitat, deliberately isolated from external influences, perpetuates her seclusion within the simulation’s rigid boundaries. When a ruptured pipe fractures the family’s artificial ecosystem, thrusting them briefly into an unknown reality, Sae’s interactions with this foreign environment mirror her ingrained isolationist patterns.

Recovery teams reintegrate the group into their controlled simulation, where reinforced neural reprogramming purges ephemeral experiences from her interrupted exposure. No expanded backstory, narrative extensions, or psychological transformations are recorded beyond these parameters.