Mokrin 

Can love transcend all boundaries? The 200-year long peace in Mokrin's island tribe is broken when the warlike Fiendbloods arrive to demand open borders. What's more, Eonyeong, the son of their chieftess, falls hopelessly in love with Mokrin. Now it's up to her — will she spurn his affection or marry him for the sake of her people? (Source: Manta) Note: The chapter count includes a prologue.