This book is about the love between Qin Yan and his childhood sweetheart Li Ran during college. After they graduated from college, Qin Yan became an anti-drug policeman and Li Ran became a military doctor. In the end, Qin Yan died in a mission to fight against drug lords. Li Ran was heartbroken and died alone after taking care of Qin Yan's affairs.
Purpose: Be loyal to only one person in your life