Kim Hee Woo came from an inauspicious start as a low-grade high schooler to work his way up through university and finally pass the bar examination. His relentless hard work has finally paid dividends, and he has become a public prosecutor. During the course of his investigations, he must conduct a probe into a politician suspected of corruption. But his investigation is abruptly ended when a mysterious man kills him. However, he later comes to, finding that he is actually alive. Restored to the mortal realm, he finds that he must return to university and complete his academic journey again – while he tries to discover the truth about what happened to him.
An ignorant but strong-willed man and an upper-class woman who struggles through life, work to fall in love.
Ji Eun is the daughter of a wealthy chaebol family. She is bright, humorous, beautiful, and smart. Ji Eun meets Se Hoon, who runs a small furniture workshop. Unlike Ji Eun, Se Hoon comes from a poor family background. He was once the top student at a prestigious university, but he had to drop out due to his sick mother. Nevertheless, Ji Eun falls deeply in love with Se Hoon. She confesses her feelings to him. Se Hoon is also in love with Ji Eun, but he turns her down due to the extreme differences in their backgrounds. Eventually, Se Hoon is unable to bury his feelings any longer and they decide to marry.