Thunderclap in the East Wind

This book tells the story of Tang Yan, the heroine, who gets into a misunderstanding with her boyfriend, Li Xu. During an argument, she transmigrates to ancient times and becomes Zhao Zhilan, the daughter of Grand Tutor Zhao. She uses the medicines she carries with her to cure the emperor and crown prince, falls in love with fellow transmigrator Zhang Ruize, repeatedly averts crises using her modern knowledge, and leads troops to repel an enemy invasion.