It was tagged as Yuri in WN but that was given to Bai Jin (female Ji Bai) and Ji Yue not Bai Ji (vampire) as Bai Ji herself unfortunately never get into any relationship lmao.
Spoiler below about Bai Ming and Ji Yue.
In alternate timeline where Bai Ji is born a girl called Bai Jin. Ji Yue somewhat retain her her memories which eventually leads to where she makes Bai Jin her fiance. yes it's "Fiance" not "fiancee" meaning Bai Jin had to act like a boy during the whole thing.
And I feel like the author want to spoil their relationship until it got derailed much half way and in the end of story. Bai Jin was given Bai Ji memories blabla she defeat Lilias, remains a human and happily ever after. Quite short and it is also very disappointing.
Kind of weird how Ji Yue story (mostly based on her perspective) turns into Bai Jin getting her knight title which somehow turns into political stuff that's way too derailed to the point the extra itself got rushed.
What's worse is that the final extra chapter is still the author trying to pull main timeline Ji Yue shipping her that girl that got embraced by Bai Ji I forgot her name but ends up rejecting her because "She's not Bai Ming or Bai Jin" lmaooo