Love upon a time

Nakhun is an unsuperstitious twenty-year-old student. One day, fate plays a trick on him and he winds up travelling back nearly four hundred years to the Ayutthaya Kingdom. He's mistaken for someone who had gone missing, so Nakhun assumes the identity of Klao and tries to work out the mystery of his disappearance while searching for a way back to his time period. Klao's friend Phop doesn't believe that Nakhun is the younger brother he knew and keeps an eye trained on him.