Mio

The First Spirit was the first Spirit to ever make an appearance on Earth. 30 years before the beginning of the events in Date A Live, she was summoned into the world by Sir Isaac Ray Pelham Westcott, Ellen Mira Mathers, and Elliot Baldwin Woodman through unknown means. However, her summoning also caused the first spacequake in history at some point of the frontier between China and Mongolia, killing over 150 million people and starting a chain of similar disasters around the world that would last approximately six months.