Lu Si Shei Shou

Lu Nanzhi transmigrated into the world of a romance novel as the villainess. Her mission is to make sure the heroine Cheng Wei has a happy ending. The hard-core lesbian figures that she can make Cheng Wei the happiest by seducing the heroine herself. But as she courted the girl, she slowly realized that the other characters seem to be treating her… differently… than how they acted in the original story?
(Source: Bilibili, translated)