Empress of the Holy Eldant Empire, 16 years old. She's rather small and cute for her age, but her breasts aren't very big. She's proactive and brimming with curiosity, so she's curious about importing Otaku culture and proactive in supporting Shinichi. (Source: ANN) Petralka usually complains at Myucel out of jealousy due to her closeness with Shin'ichi and asks him to teach her the Japanese language as well.