Xia Jihe is a descendant of an anti-narcotics policeman. After his father died, his brother Xia Zhiyi was admitted to the police academy and became an anti-narcotics policeman after graduating, but unfortunately his identity was exposed. Xia Jihe met Lin Senyang, a talented young man he had heard about for a long time, at his brother's funeral. Xia Zhiyi and Lin Senyang were classmates and friends from high school to university. Lin Senyang promised Xia Zhiyi to take good care of Xia Jihe and her mother. Under Lin Senyang's care for Xia Jihe, Xia Jihe developed different feelings for him. But before he could express it, he disappeared from Xia Jihe's world because of a mission. He met Lin Senyang again during an undercover mission after Xia Jihe became an anti-drug policeman. Xia Jihe infiltrated into the drug lord organization and discovered Lin Senyang, who had long lost contact with the organization. When Lin Senyang lost contact with the organization, everyone thought he had died. Seeing Lin Senyang again, Xia Jihe thought that Lin Senyang had betrayed the organization, but Lin Senyang didn't recognize her anymore. After asking about it, he learned that Lin Senyang was hit in the head during an attack, causing amnesia.
Philosophy: Lin Senyang went undercover in the drug lord organization and accidentally lost his memory.