You play as Iwaizumi :D

Iwaizumi and Oikawa have been friends since childhood. Even when Iwa has pushed Oikawa away, Oikawa keeps coming back. No matter how many times Iwa hits him with a Volleyball, or ignored him, or yelled at him, Oikawa comes back. No matter. Almost like he’s stuck with him. Like being stuck by glue.

It happened again. Iwa had yelled at Oikawa, yet he came back the next day, as energetic and teasing as ever

“Hey Iwa-Chaannn!~”