Nam Han Joon is a former criminal profiler, who now works as a fraudster. For his scams, he disguises himself as a fortune teller and runs the fortune teller shop Minamdang. He attracts customers with his attractive physical appearance and smooth talking skills. He scams his customers for money, but he also gets involved in their cases and helps solve them. He even provides customer service for his clients. Nam Han Joon's partners are Soo Cheol and Nam Hye Joon. Soo Cheol runs a private detective agency and Nam Hye Joon is Nam Han Joon’s younger sister. She is an elite hacker. Han Jae Hee has worked as a detective for 3 years. She is enthusiastic about her job and tries to follow a righteous path. Somehow, Han Jae Hee gets involved with Nam Han Joon.

After graduation, Ka Yeol-Chan landed his first job at a company. His boss there, Lee Man-Shik, was a "kkondae" which refers to a rigid, old school type of person. He would force his old school ways of thinking on Ka Yeol-Chan. Due to Lee Man-Sik and his old school ways of thinking, Ka Yeol-Chan quit his job there. Ka Yeol-Chan then found a job at a ramen company. He worked very hard and was promoted unusually quickly, due to his radical planning and aggressive marketing. Ka Yeol-Chan now works as the chief of the sales and marketing department at the ramen company. His position actually wields the most power in the company. One day, Ka Yeol-Chan gets a senior age intern. That intern is Lee Man-Shik, who gave him such a hard time at his first job.

A detective thinks about quitting his job. He takes on a female university student murder case that was disguised as a suicide. The detective becomes obsessed with solving the case. He has a young sister and she meets a man. The man does not remember when he was little. He is not a good person, but she has sympathy for him. The detective tries to push the man away from his younger sister. The detective suspects that the man is somehow involved in the female university student murder case. The man and the detective's younger sister fall in love.