Keigo is a young man of average height with a slim and narrow build. He has feathery, ash blond hair that is swept messily backward, with some of the front tufts sticking up in arcs above his head. He has two square-shaped piercings, one on each side of his ear, though they're often concealed by his headphones. His eyebrows are notably thick, having a similar texture as his hair, and he has faint stubble on his chin. His eyes are golden-brown and rather triangular, with two small black triangles just below his tear ducts and in the top corners of his eyes, making them resemble those of a bird. His Quirk, Fierce Wings, granted him a set of large, bright red feathered wings. Although the sizing of his wings is somewhat inconsistent, they are mostly shown to reach over his head when folded. Hawks is shown to be highly intelligent, both emotionally and logistically. He promotes a carefree and jovial attitude, while his constant vigilance often hides under layers of serenity and equanimity. Hawks acts laid-back while being on constant alert, usually speaking his mind and coming off as quite rude at times. He appears relaxed in situations of great pressure, such as during the Japanese Hero Billboard Chart. Hawks' gestures are lively, expressive, and highly personalized, as he always wants to get his voice across. He claims to be "bad at keeping it in," even though he possesses complete control over his facial expressions and body language, which makes him an extremely skilled liar.