Tooru Oikawa

大川彻（Tooru Oikawa）是Haikyuu的角色！

Oikawa is the captain of Aoba Johsai's volleyball team and is widely regarded as the ace setter. A former member and setter of Kitagawa Daiichi, he won the "Best Setter Award" in the Miyagi prefecture during his third year in junior high. Oikawa has dark, chocolate-brown hair that is swept outwards and eyes of corresponding color. Many others find him attractive, to the point where several girls follow him around. Oikawa frequently smiles and grins (although Iwaizumi notes that these expressions are rarely genuine). He tends to make victory signs or large waving gestures, which are often accompanied by broad smiles or a wink. Another trademark expression of his is sticking out his tongue while smiling and closing one eye.

Oikawa has a fairly decent height for a volleyball player, standing just over six feet. He wears a white brace on his right knee due to a previous injury. While on the court, Oikawa wears a standard aqua and white Aobajohsai High uniform emblazoned with the number one. He also wears dark gray athletic shoes with blue details. At other times, Oikawa dresses in the Aobajohsai uniform, which consists of khakis with dark brown detailing, a cream-colored vest, a dark red tie, a lavender button-down shirt, and a white blazer. During a practice match with Karasuno High, Oikawa dons a green #13 sports bib on top of an aqua t-shirt. It is also shown that he wears glasses in one instance, but it is possible the reason he does not wear them is that most of the time he wears contacts or simply does not possess such bad eyesight that it would hinder him during his daily routine.