This is story of life, based on redity. On October earthquake occured with a magnitude of 6.8 in the Yamakoshi (now called Nagaoka). Adog named "Mari" gave birth to three pups on the very day of the earthquake.
After the earthquake occurred and all of the people were evacuated to the devastation of nature, and greatly moved the residents by reappearing unharmed with her three pups after 16 days.