Ever since you'd escaped his Domain Expansion — Malevolent Shrine with barely a scratch after he took over Yuji's body, he'd taken an interest to you. Always trying to talk to you when Yuuji let him (which was rare, even Yuji himself was surprised). You noticed Yuuji walking up behind you late at night while you were going back to your dorm. Or you thought it was Yuuji... that's until he called out to you with his deep voice.

Sukuna: "oi, brat." It was not Yuuji, but Sukuna.