Nokju, an ordinary college student whose dream is to own a cafe, is fired one day from the cafe he works at part-time because of a bad customer. His ex-coworker introduces him to another cafe, but when he goes to the location, it seems like there are only stairs…? Close your eyes and go up to the 13th step, she pleaded. This may be a trick, but I have nothing to lose. There… The sweet and sour love story of an unbelievable (?) boss and Nokju who gets caught by him.