The Return of the Abyss Princess

Kaelia, the true heiress of Coral Sea, was swapped at birth by maid Melra and raised in hardship. Returning to Coral Castle, she faces fake heiress Merala and biased brother Egil. Feigning weakness while wielding wit as her blade, she strikes back step by step. She steals Merala’s betrothed—merman prince Oseros—exposes plots, seizes commerce authority, and finally ascends as Coral Sea’s ruler.