A pig girl ("highland orc") appearing in Tsukimichi Moonlit Fantasy. She is introduced very early into the story after protagonist Makoto Misumi is forced to live outside of hyuman (the natives of the other world, whose species name is pronounced like the English "human" instead of the Japanese "ningen") territory, due to the vain goddess disapproving of his physical appearance. Initially sent away from her village to serve as a sacrifice to a local dragon, she's saved from a monster by Makoto, who then demonstrates his ability to speak all languages except hyumans'.

While she's introduced as the first heroine in the story, she lacks the ability to take on a human appearance like the rest of the main cast does; Emma makes relatively few appearances once Makoto and co. begin entering hyuman territories, with Tomoe and Mio (respectively a dragon and a spider, both in the forms of human women) taking up most of the spotlight.