Han-yong, who graduated from a prestigious university, was promoted to the youngest manager of a large corporation. However, at a drinking party with her old friend Moo-hyuk, Han-yong can't drink comfortably and notices. When Moo-hyuk asked the reason, he was struggling with her attitude of wanting to marry her girlfriend Ji-hye, who has been dating her for 6 years, but not showing her parents. That night, Han-yong received a promotion congratulations from Ji-hye and asked for a marriage ceremon...