From the introduction:
The Northern Lights have fractured, become corrupted. Their once radiant light has been dyed a permanent red, and has become a choking poison to any life near it. What remains of human civilization in this area is little more than broken ruins and long dead skeletons. All that still lives here are the plants and flowers, as well as a few odd small animals. It is to this setting that a singular ordinary fox makes his way through the landscape. He will encounter the Guardian of the Northern Lights, a female fox spirit, who will bestow some of her power to him and allow him to journey across the land in order to fix the broken Northern Lights. You will be starting this jump around when the fox is walking through the frozen glacier, shortly before he met the spirit fox.