Chawarin Perdpiriyawong

Emmaly's crown prince Khanin must compete to become monarch. His royal guard Charan's duty is to bring the reluctant heir back from exile to participate in the contest and uphold tradition. (imdb)

The sons of two companies, Lian Kilen Wang and Kuea Keerati, were engaged to each other at the request of their families. One doesn't want an arranged marriage while the other wants to win him over. (imdb)