She is the young highness of Xuanhai City and the goddess at the top of the ninth floor;
He is a bullied servant and a demon king who dominates the world;
The life of immortals is long, the life of gods is eternal, mountains and seas can be leveled, and eight deserts can be returned to;
All I want is for one person's heart to remain together forever.
Concept: Immortals, Immortals and Demons, Slight Sadism