Lee Sang-sik is a trouble maker who is oblivious to the mood of others. He is straightforward even to his seniors at work. Cha Na-rae is an assistant manager with a temper. Baek Ma-tan is the heir of a big firm who enters the company with dreams of becoming independent. Gun Gang-mi is known for her beauty in the office, but when she gets drunk, she unleashes a different side of herself.