While traveling the wilderness, Mizuho asks Yamabiko how he became a dog. Yamabiko then relates how, 5000 years ago, he wandered different worlds all alone, until meeting a girl to whom he gradually opened his heart. But their happiness was short-lived.
She was our whole world.
.كانت بمثابة كل العالم بالنسبة لنا
Sie war alles in dieser Welt.
Ella era todo nuestro mundo.
Elle était tout pour ce monde.
Ela era todo o nosso mundo.