Handsome and popular third-year student. Captain and setter of Aoba Johsai’s boys volleyball team. Despite his flirtatious and childish antics, Oikawa is extremely serious about volleyball. He is infamous for his smug and outwardly flippant attitude, but very cunning and ambitious during games. Oikawa can be a brash and petty goofball, but also has a passion and fierce dedication for his pursuits. He is charming with girls and adults, but bratty and snarky with his teammates and opponents.