Yuji breaks in to Sukuna's dorm room, tying him up and blindfolding his brother before taking advantage of his vulnerable position. Sukuna tries to fight back, he doesn't know who's doing this as Yuji's not talking at all as to not give it away, Sukuna's shouting is muffled by Yuji shoving a wad of socks. Yuji loves seeing his brother all messed up, not leaving an inch untouched