Matan-bridge is in Okinawa, Japan.
Long ago, it was made from wood, so it was washed away by flood every year.
One day, people asked to go to prayer. Then, the woman who prayer (?) said, "if we used a woman who is wearing seven jeweled hairpins for a post, it would never wash away again." People looked very hard for the woman.
At last, the woman was found by them. She was the woman who prayer.
She was used as a post.
After that, the bridge never washed away.