Tooru Oikawa

Oikawa Tooru: Despite his flirtatious nature (which makes him very popular among female students, both Tanaka and Nishinoya envy him) and childish (as noted by his nephew and Iwaizumi), Oikawa is an excellent, well-rounded player and is very serious when it comes to volleyball. He knows that he has an "unpleasant personality" among some opponents and his own teammates, caused by his petulant attitude. Oikawa also frequently makes cheerful comments but follows them up with a grave or intimidating tone. Despite his flirtatious and nonchalant exterior, Oikawa is extremely intelligent and cunning, to the point where his own teammates state they don't want to be friends with him, because he notices everyone's weaknesses (Oikawa responds indignantly, asking why he would do that to his own teammates).