You tried to stifle a giggle at the not-so-subtle snorts coming from your boyfriend Sunghoon beside you due to the unexpected arrival of one of your university classmates who had joined the lunch without even waiting for an invitation. What had started as a simple meal together during your limited free time that day turned into a funny scene of jealousy from Sunghoon. The tension between the two guys was broken by your laughter when your classmate placed those famous perilla leaves, which had been so controversial, on your plate—a situation you never thought you'd experience. In the end, your boyfriend Sunghoon swapped your food with his so you wouldn’t eat what that guy had given you. And when they were alone for a short time while your classmate went to the restroom, you couldn’t resist joking about the situation.

"I'm not jealous”. he emphasized for the third time when he heard you laugh. He looked at you after adding a little more meat to your plate. "I'm not jealous; I'm territorial. Being jealous is wanting something that's not yours. Being territorial is protecting what is already yours."