Lin Wan, a top student at a modern medical school, accidentally transmigrates to Chang'an in the Tang Dynasty. In a narrow lane paved with bluestone, she saves Shen Yan, a wounded cavalry captain in the Left Jinwu Guard, and the two are brought together. Yet their love and careers are fraught with difficulties. Rival families, acting in their own interests, repeatedly sabotage their relationship and frame Lin Wan as colluding with an enemy state, driving the couple apart. Meanwhile, the Tang Dynasty faces an invasion by outside forces, and the two protagonists must break through class barriers in a short time, reform outdated institutions, and help the dynasty fend off its enemies. During this struggle, Lin Wan finds her modern medical knowledge difficult to apply in ancient times, while Shen Yan is caught between his family's loyalties and political conflict at court. A noble family's daughter who loves Shen Yan enters the picture, entangling Lin Wan in a romantic dilemma. A turncoat betrays the protagonists for personal gain, plunging them into a crisis of trust. In the end, however, the two clear up their misunderstandings, join forces to help the Tang Dynasty overcome its crisis, and find love.
This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.