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.
I was once human.
.كنت إنسانًا فيما مضى
Früher war ich ein Mensch.
Antes era un humano.
J’étais humain, autrefois.
Eu já fui humano.