Would ReRead

The social outcast, Seria, had changed.
Seria Shuteren, the vile woman who had everyone trembling with fear at her feet, was now calm.
Truthfully, the woman had not just changed, she was a completely different person.
Realizing she had possessed the wicked woman's body in this romance novel, she decided to live on the low, having a hunch about the future.
She would end those dreadful habits of Seria, avoiding her death by decapitation at the hands of Kalis, the sub male lead.

It's cute but could've done with more chapters to flesh out more than the main characters backstory

As the grandmaster who founded the Demonic Sect, Wei WuXian roamed the world in his wanton ways, hated by millions for the chaos he created. In the end, he was backstabbed by his dearest shidi and killed by powerful clans that combined to overpower him. He incarnates into the body of a lunatic who was abandoned by his clan and is later, unwillingly, taken away by a famous cultivator among the clans?Lan WangJi, his archenemy