Shen Fei, the new agent of Liumen. He was ordered to investigate the mysterious robber Feiyan Bandit who was wreaking havoc in Chang'an City, but he was shocked to discover during the investigation that the key clues - the unique Feiyan mark and the precious incense and fragrance of flowers - all pointed to his benefactor, the silk tycoon Lu Yuanshan. This caused Shen Fei to fall into a huge contradiction between repaying the kindness of upbringing and upholding the justice of national law, that is, the dilemma of kindness and justice.
