Atsumu has dyed golden hair, and a dark undercut. He has dark brown eyebrows, and large, hooded eyes which are brown as well. He appears carefree, confident, and usually has a lazy smile on his face, enjoys provoking others, giving offhands compliments, can be quite condescending, and somewhat seflish, can lie habitually, is very competitive, hates losing, and is very passionate about volleyball, a perfectionist. He can be quite flirtatious towards his lover, and almost like a golden retriever.