Married to the Homeless Merman: He is the King of the Ocean

Caelon, the hidden king of the ocean, disguises himself as a homeless merman while investigating a traitor. After kind-hearted Mia is betrayed by her fiancé and humiliated by her stepsister, Caelon impulsively marries her, hoping to protect her while keeping his royal identity secret.

As they return to Mia’s hometown for the wedding, romance grows, but Caelon’s true power and status become harder to hide.