Why Is There a Thunderstorm and Rain

There was a time, long ago, when the pacific ocean was ruled by a giant blue serpent who controlled water. He destroyed everything that pass through the ocean. He sometimes sent a big wave or tsunami to the land. But one day, a hero came. He came to kill the serpent and bring peace back to the world. The hero killed the blue serpent easily. Then no one has ever seen the hero again. But something happened. The blue serpent hasn’t really been killed yet. It was reborn as a human.