Story
Years ago, interdimensional gates opened across our world, allowing beings from five warring dimensions to expand their battles to the Earth. Now, though, the Z/X and mankind are settling into an uneasy peace and some humans are entering into pacts with the interdimensional newcomers. For one young woman this is a simple choice: Azumi Kakamigahara can sign a pact with the beautiful Z/X known as Rigel, or succumb to the disease that has left her comatose for much of her life.
Synopsis via AniList (English).
