Jao Chai Hua Jai Gern Roy(2002)

Original title: เจ้าชายหัวใจเกินร้อย

A prince determined to marry for love instead of royal status secretly flees his palace with his loyal servant and travels to Thailand in search of his ideal bride. But after a misunderstanding with a local shopkeeper, the pair end up living in a slum, where their search for love takes an unexpected turn.