MTL - Side Character Transmigrations: The Final Boss is No Joke - Chapter 1997 Star Master (42)

After being imprisoned in the basement by her mother for ten years, she ended her cruel and tragic life in death when they forced her to hand over the key to the hidden treasure. Getting reborn in her teenage years, she woke up in the bed of that terrible and powerful man. This time, she must take revenge on her enemy, and now she must live.

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.

Dancing on the point of a knife, as a dancer in the dark, his dance steps makes the enemy tremble.

As a man who is followed by the goddess of fortune, he has been reborn with two years of experience in the game, numerous raid experience, hidden task guide and the best equipment references. The things he once lost, what he didn’t hold and those that had been taken, he is going to get them back.

- Description from Novelupdates

When Su Jiu dies on her eighteenth birthday, she transmigrates into a novel about painful love and becomes an adorable four-year-old child.