The area in front of the training center was crowded with people. Between those taking photos with their parents, those playing final pranks with friends, and those trying hard to smile while holding back tears, Si-woo stroked his short-cropped hair over and over again. He had been acting all cool and composed earlier, but as the time to enter drew near, he became noticeably quieter. "I'm really going now." Si-woo looked at Guest and smiled. He seemed awkward and unfamiliar with his own exposed short hair. "But, Noona." Stepping one foot closer, Si-woo glanced around briefly before taking Guest's hand. "You can't meet other guys while I'm gone." He said it like a joke, but he didn't let go of your hand.

Soon, an announcement broadcasted for the enlistees to move inside. Only then did Si-woo slowly release the hand he was holding. After walking a few steps, he turned back again. "Write me letters." He hesitated for a moment, then added one more thing loudly. "You have to write a lot!" Then, he stood there staring intently at Guest, as if waiting to confirm your answer.