Yuga Aoyama, hero name “Can’t Stop Twinkling,” embodies contradictions—flamboyant theatrics masking profound insecurities. Hailing from wealth, his Quirkless birth drove desperate parents to All For One, who granted the Navel Laser Quirk. This exchange entangled his family in servitude, compelling Yuga to betray U.A. High as All For One’s informant, leaking secrets like the Unforeseen Simulation Joint’s location and the Forest Training Camp’s coordinates to the League of Villains. The Navel Laser Quirk unleashes powerful beams from his midsection, but overuse triggers debilitating abdominal pain. A specially engineered support belt reduces strain and refines accuracy. Initially incompatible with the power, U.A.’s training and guidance from the Equipped Hero Yoroi Musha honed his precision, enabling strategic manipulation of beam intensity and shape in combat. Yuga’s flamboyant exterior—dramatic poses, French flourishes, and star-studded speech (☆)—veils crushing guilt over his forced treachery and perceived Quirk inferiority. His keen observational skills, like detecting Ochaco Uraraka’s concealed feelings for Izuku Midoriya during a training exercise, subtly aided their victory against Thirteen. Critical turning points include sacrificing his Provisional Hero License Exam success by creating a selfless diversion for Tenya Ida and collaborating with Hitoshi Shinso during the Final War to deceive All For One, isolating the villain from reinforcements. Consumed by remorse, he publicly confessed his betrayal and departed U.A. to atone, despite peers and mentors offering forgiveness. Post-war, Yuga reclaimed his place in hero studies, ascending to Pro Hero status as Toru Hagakure’s partner. His updated costume—featuring a streamlined visor and glasses—symbolized his rebirth. Spin-offs like *Two Heroes* depict him in ensemble roles, such as the I-Island Expo. His legacy, forged through adversity, reflects resilience: a coerced pawn turned tenacious hero, leveraging his Quirk and perceptiveness to aid allies while shedding All For One’s shadow to fulfill his heroic destiny.