CHI and YEK visits SIN in order to thank for his assistance. Therefore, SIN inspires YEK with a word ‘smile’ that it will lead her to find her fiance soon. YEK takes his word seriously and smiles at every man she meets on the street. Finally, YEK meets HONG, the one she is unexpectedly. HONG falls down and makes YEK laughs uncontrollably. Her smile leaves HONG a memory that cannot swipe away.