Meet Do Kyungsoo, a 23 year old bachelor who is working as a manager at a renowned hotel located in the city of Seoul. Despite being only 23 and just started working after he graduated from college, he managed to score a high profile job at a prestigious organization. Living his daily routine at work, sometimes the memories of his first day at work seems to amuse him. Working under his supervisor whom he deemed as incompetent, he carefully devised plans on how to “get rid” of his supervisor and slowly made his way up to the position he is in now. Looking back into his life, he is somehow proud of his little achievement. However, working in a big organization such as his is like living on a battlefield, everyone need to watch their own back and be ready to stab others back whenever it is necessary but as they say; what goes around comes around.