Hard-working Boss summary: You are reading Hard-working Boss manga, one of the most popular manga covering in Yaoi, Adult, Mature, Smut, Drama, Psychological genres, written by Sokkong at MangaBuddy, a top manga site to offering for free. Hard-working Boss has 6 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Hard-working Boss to your bookmark. Ma Ki-woong, who holds the position of general manager of the Black Namcho Company, is famous for his bad temper enough to be called the 'Chief of Demon King'. Yoo Ha-jin, who worked at the company while hiding his identity as the chairman's grandson, decides to take revenge on Ma Ki-woong in every way.