Shuna no Tabi

[From Nausicaa.net]:

Shuna is a prince of a very poor country. His people have very little that they can grow on their poor land, and are starving. Shuna hears of the Land of the Gods and of the Golden Wheat growing there, and so he journeys there to bring the seeds back to his people. After a very long and hard journey, he finally reaches the Land of the Gods, and steals some seeds. But he is severely punished for his crime. However he is nursed back to health by a girl whom he once rescued from slavery, and who now lives in a mountain village. She also plants Shuna's seeds and protects them from the elements. Eventually, the crop season comes, and she now has to choose a husband...