Chul Soo, the carefree son of a high-ranking intelligence agency official, lives for nights of flirting and fun, oblivious to reality. However, when his professor forces him to join a historical tomb excavation team in northeastern China as a graduation requirement, his life takes an unexpected turn. Meanwhile, Young Hee, an intelligent and beautiful North Korean diplomat's daughter, faces the prospect of an arranged marriage, prompting her to join the same expedition.