Nishinoya is a second-year student at Karasuno High School and a libero. He is called "Karasuno's Guardian Deity" because of his excellent and amazing skills as a libero, having won the "Best Libero" award while he was still in middle school. He has a very energetic personality and is ridiculously strong-hearted. He does tend to get carried away because he has so much passion and intensity. He is also mentioned to be the backbone of the team because whenever he is on the court, he assures all of his teammates that even if they get blocked, he will be there to pass it up so they are able to spike as many times as they need to win the point. He is also extremely loud and motivational, and is one of the only people able to bring the team up in good spirits right before matches against the better teams in the prefecture. He's also the shortest player on the team. Like Tanaka, he adores Shimizu, in the episode he is introduced in, he mentions one of the main reasons he came to Karasuno in the first place was because he liked the girls' uniforms.