Transmigating to the 80s to become stepmom to five bigwigs is pretty good and fits your requirements. MC transmigated into the world of a novel that took place in the 80s as a villain, the "original mcs" sister.
Transmigrating to the Ancient Times with Lu’s Convenience Beloved Husband Comeback of the Abandoned Wife Rebirth of a Cannon Fodder from a Novel The Yandere Came During the Night Transmigration of Mian [Reluctantly] Becomes His Man [Wife] Rebirth to Become the President’s Omega Wife I Became The Stepmother of My Ex-husband Rebirth of The Golden Marriage Doomed to be Cannon Fodder Repudiating a Good Wife Is Out of the Question My Whole Family Are Villain Chongfei Manual One Useless Rebirth Rebirth of the Film Emperor’s Beloved Wife Perfect Secret Love: The Bad New Wife is a Little Sweet After Rebirth, I Became a Powerful Minister’s Beloved My Sweet Physician Wife Calls The Shots Transmigrating to the 80s to Become Stepmom to Five Bigwigs +1 The Male Main's Uncle Is Openly Obsessed With Me
the fact I already read half of these are telling how much I invested on reading this type of novel Time to read some more *Insert hehe boi vine*