A little background story video by Gravity, and below translation by Sepia:
Freyja was once a beautiful and kind goddess who loved all life. But because of her beloved Odin's betrayal, she became the goddess of destruction, burning with revenge. To destroy everything that Odin created, she began the great catastrophe, later to be called the "Day of Despair".
When Midgard fell into the brink of extinction, young heroes rose to save the land. Thanks to their endless courage and wisdom, Freyja was sealed and Midgard found peace once again.
A long time passed and the world became as it was before. In the age where the Day of Despair and Freyja both became merely legends, the official successor of the Rune-Midgart's royal family, Ignarts Gaebolg, constructs a new Rune-Midgarts kingdom.
The peaceful days continued, but one day, at the Armin ridge, near the Kingdom's capital Prontera, a dimensional gap appeared, emitting strange energy that changed the environment.
After great effort, the Kingdom's magicians were able to seal it. The Kingdom decided that there was a deep connection between the incidents all over the land and the dimensional gap, and created a special investigation team to further investigate.
Recruitment notices were announced all over the land. After reading the announcement, adventurers from all over the land began to gather in Prontera with their own dreams and ambitions...
Legend of the Second
its Second Legend begins.