The Dragon King 's Bride

Celestia, the goddess, was drugged and betrayed by her stepsister Mortis. She spent one fateful night with Dragon King Azriel and later gave birth to a pair of dragon-god twins. Coveting the Dragon Queen’s throne, Mortis stole their baby daughter Joey, raised her as her own, and plotted to execute Celestia.
Fleeing to the barren wasteland, Celestia lived in anonymity for five years with her son Aion. Born with an incomplete divine core, Aion could only survive with his biological father’s essence. To save her son, Celestia returns to the divine realm. There she unexpectedly meets the Dragon King’s “daughter” Joey and feels an instinctive bond with the child.
Azriel senses an inexplicable familiarity with Celestia and takes her and her son into the dragon palace. The story culminates in a grand wedding between Celestia and Azriel. The Dragon King swears to love only her for eternity, as their twin children witness their parents finally reunite.