Entre escamas e coroas. (eng.ver)

An embittered mermaid called Kotai Emiri has been sent from the seas to the land to infiltrate the Royal Household in order to obtain information about the royalty. So she presents herself as one of the candidates to become the wife of the first heir, but little does she know what awaits her.
Are you ready to embark on this story of development, romance, pain and a lot of bullshit?