Karasuno High Team Formation ArcEdit
In the Interhigh preliminaries, Iwaizumi's team faced off against Karasuno High. In the end, Aobajohsai advanced, but only to be defeated in the next round by Shiratorizawa Academy. While most 3rd years from other various schools moved on and left the volleyball club behind after the Interhigh, Iwaizumi and the other 3rd years stuck around to have another chance at beating Shiratorizawa.
Tokyo Expedition ArcEdit
Spring High Preliminary ArcEdit
In the Interhigh preliminaries, Iwaizumi's team faced off against Karasuno High. In the end, Aobajohsai lost against Karasuno, thus finishing Iwaizumi's high school volleyball career. However, he returned to watch the Shiratorizawa vs Karasuno match, and he ended up watching the match with Oikawa whom he found doing the same thing.