SHEN JI YUN was the one who answered. "The assumption that the Ripper is male comes from the nature of the crimes. The victims are all women, and the brutality of the attacks suggests a level of physical strength typically associated with men. Not to mention, the letters sent to the police were signed 'Jack the Ripper,' which only reinforces the idea of a male perpetrator."
Of course, Luo Yan also believed that the real Ripper must be a man. But this was a VR game, and the people who wrote the script might have deliberately made Jack the Ripper female to throw everyone off. Given all the red herrings they'd encountered during the investigation, the possibility of the game's staff gender-bending Jack the Ripper was definitely a possibility.
But he couldn't give that same explanation to Holmes. Who knew what consequences there might be if the detective started to suspect they weren't the characters they were pretending to be?