Machimnae Pureun Bulkkochi

The sickly Princess Yeong-Myung knew nothing of the violence and betrayal surrounding the royal court. Yet when the threat of a vile mythical beast and the machinations of the cruel Gaesi Kim loom large, she will do all she can to save her family from certain doom. Armed with only her wits and courage, Yeong-Myung must accept the aid of a stunning blue goblin who vows to be her loyal guardian. Can love win and save this unlikely pair from the vicious schemes that bedevil their every move?

(Source: Tapas, edited)