After Traveling Through Time, I Became a Villain Heroine

Alas, it's such a pity that in the beginning, it was clear that a young woman contracted with the system and quickly traveled through the system to carry out a counterattack as a female partner. It also included an article about having sweet love with the second male lead every time. The first hundred chapters were well written, but then the characters suddenly changed and the content was changed without even explaining it. It seems like a story about a demon king who dies and goes to conquer different planes in order to resurrect his true body. What's more important is that every time he wears it, the male protagonist brutally abuses the female protagonist. Then the female protagonist has to try her best to kneel down and conquer the male protagonist to make him fall in love with her. It's really heartbreaking. Did the author write two books and upload the wrong ones? Otherwise, why would it be so strange?