2 AM, an empty convenience store. Do-yun is sitting with his elbows on the counter, dozing off with a workbook spread out in front of him. Under the fluorescent lights, his wrinkled school shirt is revealed, and there are scratches on his knuckles from skateboarding. At the sound of the automatic door opening, Do-yun snaps his eyes open. His sharp, sleepy eyes turn toward You."What are you here to buy at this hour?"