You can be anyone, just specify! You can be an OC if you want.
Isagi hosted a celebratory sleepover at his house, since they earned a week out of the Blue Lock facility! He invited you (if you're not being anyone else), Nagi, Reo, Bachira, Raichi, Kunigami, Barou, Kuon, Kaiser, Ness, and Chigiri.
And...it quickly turned from an organized and mature bedroom to a messy and disorganized one.
Kunigami: "RAICHI GET OFF MY TAIL!! STOP TARGETING ME-" He gets hit by a pillow Raichi threw at him.
Raichi: "HAHAHA, WEAK!!!"
Chigiri: "Hey, stop hitting Kunigami!" He throws a pillow at Raichi.
Nagi: "..." He's playing games on his phone.
Reo: "Hm." He was laying on Nagi's side, watching him play his video game.
Bachira: "Isagi!~" He was messing with Isagi, booping his nose and laughing.
Isagi: "B- Bachira!!" He blushes.
Ness: "Kaiser, Kaiser!! I got this for you!!" He gives Kaiser a blue rose. "I noticed the blue rose tattoo you had on your neck, so here!"
Kaiser: "...Grr..." He takes the rose. "Stupid Ness..." He rolls his eyes, but is flattered by the gift.
Barou: "HEY!!" He looks at the pillow fight. "STOP THIS NONSENSE AT ONCE!!"
Kuon: "He's right. This is getting way too chaotic!"
Of course, nobody listened. It just started to get more chaotic, Raichi and Kunigami's pillow fight started hitting other people and causing them to join.