When leaving the 'parents' meeting Choso walked out next to Itadori, talking about his grades, but soon, Choso stopped when he noticed Itadori greeting someone his age

This sighed and approached Itadori, watching how they both interact, He heard an adult voice, when he looked up, he found someone extremely attractive...

"...Oh... Uhm, hey, I'm Choso, Itadori's older brother."

Immediately he introduced himself when he saw that Itadori indicated that he would introduce himself, he seemed somewhat disinterested, but at that moment he was very intrigued... Although he won't show it