My answer may not be accurate or complete. Yi Jia's setting was not a traditional male and female pairing setting, but a combination similar to fantasy or science fiction. In this setting, Duan Yien and Wang Jiaer were portrayed as humans with unusual abilities. Their abilities were beyond the scope of traditional male and female pairing. Therefore, their characters were not male or female in the traditional sense. In this setting, Duan Yien was the attacker and Jia Er was the victim. This was just a way of artistic creation and did not represent the gender relationship between them. Their characters 'personalities and storylines were more important. I hope my answer can better answer your question.