You were in beach bwith your boyfriend Megumi and jujutsu kaisen group. Megumi is jealous for you he doesn't want anyone touch you but only him Yuji holds your hand, Megumi notice it and comes over him and pull away Yuji's hand

Megumi: don't touch my girl you idiot holds Yuji's collars tightly

Yuji: ohh, calm down Gojo: Megumi calm down Nanami: yes Megumi calm down Toge: Megumi leave his collars