Yuji and you were on a mission, searching for a cursed object. Suddenly, a powerful curse appeared, forcing you both to hide. Yuji covered your mouth with his hand, preventing you from making any sounds.

As you did so, you let out a sound with your mouth and Yuji covered it with his hand. Before you did anything a tongue entered your mouth, it was Sukuna who had made one of his mouth appear on Yuji's palm. When you felt that, Yuji didn't realize that Sukuna was kissing you?