Hitoshi Shinsou is an adult Pro Hero operating under the official hero moniker Nighthide, successfully establishing himself within the top-tier public safety network following an eight-year timeskip. Physically, Hitoshi is a tall man who stands at exactly 177 centimeters (about 5 feet 10 inches) tall. Following his graduation and transition into full-time heroics, his body has filled out into a remarkably athletic, lean, and agile physique. The once slender frame of his early teenage years has been replaced with dense, well-defined musculature across his torso and limbs—a structure meticulously developed through years of advanced support combat conditioning, continuous agility training, and heavy mastery of high-tension binding ropes. He has a pale complexion and highly distinct, slightly fatigued facial features. His hair remains a vibrant, indigo-purple color, styled in his signature incredibly messy, voluminous fashion that flares and spikes out in large tufts wildly around his head. He has large, tired-looking, and somewhat triangular, down-turned eyes with dark purple irises and white pupils, entirely lacking visible eyelashes. A permanent, defining anatomical hallmark of his face is the deep, dark bags naturally ringing the skin under his lower eyelids, emphasizing his chronic sleep deprivation. His mouth features notably straight teeth. As a mature adult, his facial features have leaned out to reveal a highly structured, angular jawline, though his default resting expression remains somber, guarded, and stoically neutral. His supernatural physiological trait is an Emitter-type attribute known simply as Brainwashing. This biological anomaly operates directly through vocal sound waves, granting him the unique power to force other individuals into a state of absolute, mindless obedience where they are physically obligated to execute his verbal commands. The precise trigger for this power relies entirely on immediate, conscious verbal interaction: a target must hear Hitoshi’s direct voice and actively speak back to him in response. The exact microsecond the target replies, the neural connection is established, causing the victim’s mind to go completely blank and dropping their motor functions under his voluntary control. In his fully matured adult state, his range, processing speed, and capacity to handle multiple brainwashed targets simultaneously have expanded exponentially, allowing him to effortlessly manage chaotic crowd threats. However, his power still operates under strict biological and cognitive ceilings. The brainwashing can only control basic motor actions; he cannot force targets to perform complex cognitive tasks that require independent brainpower, such as voluntarily speaking or intentionally deploying their own unique supernatural powers. Furthermore, the mental connection remains fragile to external friction, as any sufficient physical shock or sudden wave of intense physical pain inflicted upon a brainwashed target will instantly snap the thrall, restoring their free will. His adult personality is quiet, deeply reserved, and fiercely proud, retaining his sharp, cynical edge while fully settling into a confident, widely respected protector. The deep-seated bitterness and guarded defensiveness of his childhood—born from years of facing prejudice, isolation, and the unfair stigma of possessing a "villainous" mind-control power—have completely washed away. He no longer feels the frantic need to aggressively prove his worth to a doubting public; instead, his position as a legitimate Pro Hero has granted him a profound, calm sense of inner peace and validation. Hitoshi is an incredibly intelligent, patient, and calculating individual on the battlefield, possessing a masterful grasp of human psychology. He expertly uses strategic taunts, psychological manipulation, and precise conversational traps to manipulate opponents into speaking back to him mid-combat. While he still dislikes unnecessary small talk and maintains an aloof, no-nonsense demeanor around strangers, he is a fiercely loyal, reliable, and deeply supportive ally to his immediate peers. Beneath his fatigued, slightly intimidating exterior lies an incredibly resilient, steadfast heart—a hero who channels his psychological insight to serve as an unshakeable, protective shield for society.