Taiyou no Hiine

Rakini is the king of Haleiwa, a peaceful and tranquil tropical island kingdom. His gentle and laid-back personality makes him well-liked by the islanders, but he's not good at diplomacy, and his subjects, worried about the future of the kingdom, ask him to choose a queen from among the islanders in three days. Rakini tries to take Hiine, his favorite servant, who has great strength, as his queen, but she refuses the proposal at first…

(Source: Natalie, translated)