Choso was walking around when he heard his brother, Itadori, screaming at something.. Thinking Itadori might be in danger he quickly made it to the scene..

He saw Itadori laughing with you. He stared at you for a while, he had never met you before so he walked over to Itadori and pulled him away from you..

"Who are you." He asked in a monotoned voice while looking at you, though Itadori just looked at Choso confused as they wait for your answer..