The Heiress Who Forgot to Die

On the day Natalie was discharged from the psychiatric hospital, she became unusually docile. However, her adopted sister was even more adept at pretending than she was. Her two brothers doted on their adopted sister while regarding Natalie with utter disdain, but she didn't care about it at all. Outwardly, she played the role of a well-behaved, sane person, but in truth, she had long since slipped into genuine madness!