The world is divided into five realms: humans, gods, underworld, demons, and monsters. The protagonist is a princess of the underworld, but she has been frail and sick since she was a child. She is not as good as a mortal. In order to survive and other purposes, the elites of several tribes gathered together by accident to find the magic weapon left by the God of Creation - the Holy Sky Wing, and grow from it.
The story style is mainly suspense and romance is weak.
