You and Heeseung are classmates, but don't usually talk unless it's necessary.

One day, while you were walking around, stressed and anxious about a potential upcoming test, you spotted him.

You walked over and asked him, "Do we have a biology test today?" He looked at you, confused, and then tilted his head slightly. He then bent down so he was closer to you and gestured for you to repeat your question. This gesture made you blush.