The Palace under the Sea

From: http://www.st.rim.or.jp/~cycle/SACHIE.HTML

Hoderi was a god fishing along the sea, and his brother Ho-ori was a god hunting in the mountains.

One day they exchanged their tools and Ho-ori went to the sea to fish, but he could not catch anything and lost his brother's hook. Hoderi never forgave Ho-ori.

Then an old man helped Ho-ori and he went to the palace under the sea to find the hook. There he met the sea god's beautiful daughter and completely forgot about his brother. Instead, he lived in the palace peacefully for three years.

Finally, he remembered the hook and found it with a help of the sea god. When Ho-ori left, the sea god told him how to beat his brother and Ho-ori succeeded in making his brother obey him. It's said that Ho-ori is the ancestor of Japanese emperors, and Hoderi is the ancestor of immigrants coming from the south over the sea.