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.
Why didn't she come with us, anyway?
لماذا لم تأت معنا؟
¿Por qué no vino con nosotros?
Por que ela não veio conosco, afinal?