Ling Wei, the first female killer in ancient times, "Blood Kite", accidentally traveled to modern times while performing a mission, and was rescued by Lu Chenxiao, a rich second-generation special soldier who seemed cynical but was actually insightful. She used her "amnesia" as a cover to learn about modern life in his world, going from being vigilant to becoming emotionally involved. When the two face the crisis from her past together, they uncover the secret behind time travel, and finally gain a perfect love that spans time and space.
