Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Protected by a goddess, a kingdom of quartz shining in platinum color. However, for some reason, a vicious devil appeared in the city 3 years ago. Blue, an orphan who was born with black wings and despised by everyone, awakens to a terrible power and kills the devil. Blue swore eternal allegiance to the first prince of the Quartz Kingdom, Katherine Shea. Blue entered the Helios Military Academy to become the "angel" she dreamed of. What she sees is light or even deeper darkness.