Jeoldaegam Gildeurigi

Eun-hyeon is the promising young CEO of RedFit, a vastly successful gaming company. But while he’s got the looks and the status, he’s also a chronic workaholic with a mean mouth, and his employees are always busy avoiding him. His secretary, Ms. Han, is the only one who seems to be capable of dealing with his insensible remarks... But even she has her limits. Having had enough of his tyranny, she storms inside his office ready to quit - completely oblivious to the words that would soon come out of her irritable boss’ mouth.

(Source: Lezhin US)

Note: Chapter count includes a prologue.