All the reborn girls owned by Mao, no matter whether they were Yingchun, Xichun, Daiyu, Miaoyu, Qingwen, Xiren... They all came back as Xue Baochai and Wang Xifeng when they were reborn. They were rebirths, not replacements, Kewu.
Why is Mao Zhengzheng determined to fight to the death for time travel? There are so many ladies in the mansion, so how can two normal people not be able to get through without one of them dying?
Wait, my dear, your painting style is wrong. Did the crew next door go to the wrong door? Just go back to your historical drama, okay?
PS: Because the entire background is based on the otaku fighting novel, there are a lot of BG scenes (not the male lead BG), and it is not a universal novel. If you feel uncomfortable, please skip it.