TV-Series
Description
Yui Saikawa, a 14-year-old national idol distinguished by a signature eyepatch, conceals a sapphire-engineered left eye gifted by her late parents. Born December 23 under Capricorn, she was orphaned at 11 and resides alone in a sprawling mansion. Her artificial eye, implanted at age 8 after congenital blindness, houses the "Miracle Sapphire"—a family heirloom enabling her to perceive through barriers, anticipate actions, and discern falsehoods, though overexertion triggers physical strain.

Her parents, killed by the shadowy organization SPES for repurposing its technology to restore her sight, tied her existence to clandestine conflict. Publicly radiating playful cheerfulness, Yui privately masks profound solitude and a weariness beyond her years, shielding her vulnerabilities to safeguard both herself and those around her.

SPES’s relentless pursuit of the sapphire thrusts her into danger, culminating in a concert ambush where attackers target her eye. Forced to expose its powers and her parents’ sacrifice, she allies with others to thwart theft attempts. Subsequent trials test her resolve: coerced into aiming a weapon at allies, she defies manipulation by choosing trust. Joining a perilous cruise mission to rescue a kidnapped friend, she leverages her ocular abilities to outmaneuver threats. Confronted with SPES’s offer to resurrect her parents, she rejects illusionary reunions, affirming her commitment to truth and self-determination.

Initially guarded, Yui gradually forges deep bonds, adopting the role of "assistant’s assistant" to support her allies. Juggling idol duties with covert training to hone her eye’s capabilities, she confronts setbacks like losing her voice before a pivotal performance—a hurdle overcome through camaraderie. She integrates subtle sapphire reveals into her acts, honoring her parents while connecting with fans.

Her evolution from isolation to interdependence underscores her resilience. Relinquishing sole reliance on her eye’s power, she embraces collaboration and vulnerability, confronting her past while defying external control. These choices cement her identity as a layered protagonist navigating loss, legacy, and agency with unyielding resolve.