I Accidentally Saved the Male Lead’s Brother

She possessed the body of Charlotte Lania, an extra not even mentioned in the original story. She thought the blood-soaked social circles and political schemes were from another world—until she accidentally met and saved the male lead’s younger brother.

Theodore Heinst. The younger brother of the male lead who dies at age three?! In a situation where she could easily be accused of being an accomplice to an assassin, Charlotte decides to take good care of this child and clear her name. But……

“Teo wants to live with Noona!” This tiny kid starts throwing a fit and refusing to go home, and then…… “Would you be willing to become the mistress of the Heinst family?” Karlisle Heinst, the male lead who must enter a contract marriage with the original heroine, even proposes a contract marriage to Charlotte…… Farewell to her peaceful extra life!