Rennyuu Order: Okawari The Animation

Taiyou no Hime
One day, the hero, Takayuki, who lives alone in Japan, away from his parents in a distant country on an archaeological dig, is suddenly visited by the brown heroine Sasha, the princess of the mysterious country of Al Fajar. She is carrying a letter from his father, which says that Sasha has become Takayuki's wife....