After creatures only known from legends proliferated and evolved, humanity trained soldiers to save the earth and fend against these creatures. Aliyah Walker, known as one of the youngest Enforcers, finds herself in the midst of chaos after she met Aizel Aryster. The young man not only looked different but his identity also remained as a mystery. After a near death experience, Aliyah finally renewed her bond with Aizel that will be tested as they face the secrets and conspiracy behind Aizel's past.

As they uncover the truth, will Aliyah choose Aizel over everything or will she abandon their bond and save the world?