He is a third year student at Karasuno High and is one of the boys' volleyball club's wing spikers and its ace.
He has long hair which is usually styled as a bun behind his head and dark brown eyes matching his brown hair as well as his eyebrows. He also appears to be growing some facial hair on his chin. In Season 2, he is shown wearing his hair in a loose bun in addition with a sports hairband.