|Occupation:||Aobajohsai High student and volleyball player|
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Oikawa Tooru is a character from Haikyuu. The captain and setter of an opposing volleyball team (Aobajohsai High), he also has a history with Kageyama Tobio as the captain and fellow setter for their middle school Kitagawa Daichii.
- Iwaizumi Hajime/Oikawa Tooru or Iwaoi: Iwaizumi Hajime is Oikawa's best friend since childhood who sticks by him and somewhat keeps him in line.
- Kageyama Tobio/Oikawa Tooru: Kageyama Tobio is Oikawa's former kohai who he holds a grudge against for being a genius setter who seemed to be after his position.
- Ushijima Wakatoshi/Oikawa
- Sugawara Koushi/Oikawa
- Tōru Oikawa on the Haikyuu!! Wikia