Lin Wei, a modern medical student, was transported to the Tang Dynasty due to an explosion in her laboratory and became an apprentice at the Imperial Hospital. She used modern medical skills to resolve the crisis of difficult childbirth and rescued the imperial concubine. She met Prince Ning Xiao Che for the first time, but she was also involved in the palace whirlpool because of her status as an "alien". The two gradually fell in love while fighting the epidemic and investigating the case, but they were repeatedly obstructed by Princess Ning's family and framed by the third prince Xiao Yu - Lin Wei was falsely accused of collaborating with the enemy and sentenced to death, and Xiao Che was forced to marry in order to save her. At the bloody wedding, the crisis turned and when the truth came to light, Lin Wei found that her heart was seriously injured and her time was running out. She also found the possibility of traveling back in time. On a thunderstorm night, she said goodbye to Xiao Che at the Lishan Observatory, leaving behind the promise "I'll find you in the next life." After Xiao Che ascended the throne, he never became a queen. He spent the rest of his life guarding the herbal medicine map and the fragments of clothes. He spent his whole life obsessed with Lin Wei, and was eventually buried together in Lishan Mountain. The tombstone was engraved with "Chang'an's wet dream, no regrets in this life."
