It Turns Out, They Are the Protagonists - Chapter 4: Who the Hell Do You Think You Are?

Song Lianhe transmigrated into a book, becoming the Villainess and legitimate daughter of the General Mansion, the Crown Prince's fiancée, and the female lead's stepping stone. Her existence was to use her ignorance and foolishness to highlight the female lead's intelligence and kindness; her repeated unrequited love also drove her completely insane, and in the end, she was tormented to death by the male and female leads working together...Song Lianhe transmigrated at the critical moment when the Villainess tried to drug the female lead, only for the plan to be cleverly thwarted by the female lead, resulting in the Villainess losing her own virginity instead.In a dilapidated temple, while “saving herself,” she said to the paralyzed man: “Don't worry, I will take responsibility for you...”Afterwards, the woman picked up her skirt and fled. The villain opened his eyes, his gaze filled with a cold and sinister venom: “I want her dead!”

Bibi Dong, once the powerful Supreme Pontiff, never expected to be reborn—especially not as someone else's martial spirit. In this new life, she finds herself bound to a young soul master with great potential but little knowledge of the powerful spirit within him.As Bibi Dong guides her host, she must confront her past mistakes and figure out why she was given this second chance. Is it to correct her past, or is there something more at play?

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again.