Ookami wa Hana no Kaori

Long ago, a wolf and white deer fell in love, becoming mates for life. Deep in the mountains lies a land of people who live in harmony with wolves. Among them, those who are born with white hair are called "white deers", said to have descended from the white deer of their legends. Those with black hair are called "wolves" and the royalty of these wolves will mate with white deers for life. One day, a golden-eyed white deer is discovered locked up in the basement of a village. The Soldier who found this white deer, Ylwess, and Alta slowly begin to grow close to one another. He knows he wants to protect Alta, in all of his innocence and beauty. However, Alta is destined as a white deer to marry into royalty... how can the two confront this problem...?

(Source: Frontier Works)