When the "Void Beasts" from another dimension tear open the heavens, humanity's fate falls into the hands of young, girl-shaped weapons known as Maidens.
Every Maiden is equipped with a unique Core Matrix, the source of her power and the place where her soul resides. To awaken that power, she needs a male pilot known as a Key-Holder to complete a high-risk soul synchronization with her inside her Sanctum.
This synchronization is sacred and exclusive. Once the Matrix and the Key-Holder
