Modern-day office worker Luo Xueer crashes into a locust tree and transmigrates into an orphan in the Tang dynasty. Determined to find a locust tree and return home, she ends up by a twist of fate taking the place of the late Princess Anle and living in the imperial palace. There she meets Censor Shen Yan, and as the scent of locust blossoms drifts through the air, feelings quietly bloom between them and her longing to return home begins to fade. But turmoil erupts at court. Shen Yan is demoted for standing up to the powerful, and Luo Xueer resolutely flees the palace, following the scent of locust blossoms for thousands of miles in pursuit of love. In the evening breeze, their love that spans a thousand years races toward the ends of the earth.
