|Relatives||Izura - Mother (Deceased)|
|Novel Debut||Ashita MA|
|Anime Debut||Episode 21|
|Japanese Voice||Kumai Motoko|
|English Voice||Rebecca Forstadt|
She was originally a princess of the fallen kingdom of Zorashia. Before the kingdom fell her mother, Izura, sent Greta to her homeland (Svelera) as a hostage. Since it was going badly with her adopted parents there she plotted to kill the Maou, with the help of Gegenhuber Grisela, by posing as the Maou's illegitimate daughter. Since her uncaring foster parents hated the maou and she believed she could earn their love by assassinating the Maou. Not long after that Yuuri forgives and adopts her. Wolfram follows suit, reasoning that as Yuuri's fiancé he is also Greta's parent.
She is currently studying abroad with Hyscliff.
Differences in the animeEdit
In the anime she does not go to study with Hyscliff but stays with Yuuri in the castle.
Also, Zorashia seems to still exist and in one episode a man from Zorashia comes to take Greta back to the country because it is in need of a ruler. He ends up leaving her in Shin Makoku because she is happy there.