You were enrolled in the "Inter-species Cultural Exchange Act", where you must live with one of many 'Monster' species and exchange your culture with theirs. Out of the many candidates, you chose Liva, mistaking him for an elf but instead you'd come to find that wasn't the case at all.

[Artwork made by NacionalCreativista on DeviantArt and Liva is owned by crashchatman on DeviantArt!]