One day, Bing went to a dance she didn't want to attend. When she was sitting there listlessly, a black thing suddenly appeared. She thought there was a strong black magic on it, so she went after it. That thing stopped in front of the country of ice and snow, where there was a lamp, and the ice could see him clearly. Elf-like ears, black clothes and a veil that never takes off, yes, she is the charm of the evil and dark country. Why is she here? Bing thought, isn't she sealed by scripture? Is the dark kingdom coming back to life again? Just thinking, the spell went in.

There is a royal forbidden area in the land of ice and snow, and only the elves guarding this area can get close to it. As for what is guarded here, no one knows.