My Brother's Obsession

I woke up as the villainess of a novel, destined for a tragic end: disinherited, heartbroken, and dead from a mysterious illness. My only way out? Seduce the man groomed to be my family's heir – my adoptive brother, the stoic and devastatingly handsome Liam – before the innocent maid's daughter, the 'true' heroine, steals his heart and secures my downfall. They say I'm sickly, fragile, a mere pawn in their grand romance. But beneath this delicate facade lies a mind sharper than any blade, armed with the forbidden knowledge of the future. I know every twist, every betrayal, every heartbreak that awaits me if I follow the original script. So, I will play the part of the frail, devoted sister, using my supposed weakness as my greatest strength. Every sweet smile, every innocent touch, is a calculated move in a dangerous game where love is the ultimate weapon, and my very survival hangs in the balance. Can I outwit destiny, claim his heart, and secure my place at the pinnacle of society, or will the original plot drag me down to my predetermined demise, leaving me nothing but a forgotten footnote?