The "Instrument Princess" of Fengyu High School has a music competition with the "Apollo Piano Prince". A piece of music "Mystery" from the late Ming Dynasty and the early Qing Dynasty takes her back to the smoke-filled era of the late Ming Dynasty and the early Qing Dynasty. At the border of Liaodong, she meets Hua Wuxie, a boy from the Ming Dynasty who is wanted by the whole city, and unexpectedly gets acquainted with Dorgon, who is famous in the history of the Qing Dynasty.
Hua Wuxie, seventeen years old, has great hopes for the future. He wants to make great achievements and be famous for generations. However, he meets Yuan Ziyi, a girl who has traveled from the 21st century, and his life takes a turn.
Yuan Ziyi, who knew the historical process, traveled to the Ming Dynasty and was unfamiliar with the place and had no support. Meeting Hua Wuxie made her feel like she was clinging to a piece of driftwood. In order to let him take care of her helpless self, she pretended to be the daughter of a Ming Dynasty general, and staged a smoke-filled journey with a Ming Dynasty boy, adding beauty to this musical journey.