The reign of King Narai was the most prosperous during the Ayutthaya period. Ayutthaya kingdom at that time has great commercial and diplomatic activities with all foreign nations, particularly the west. Everywhere was full of foreign immigrants, merchants, missionaries diplomats and military personnel. Foreigners especially westerners were backed to oppress the Ayutthaya people causing outrage. Lady Pudsorn is the beautiful daughter of a famous deceased doctor. She well inherited medical knowledge from her father. Aok Luang (Viscount) Indra Ratchpakdee is a handsome police nobleman who is responsible for the peace and safety of people in the metropolitan area.