The Yandere Villainess and Her Mad Dog Brother

She transmigrated as a doomed villainess destined to die in a bloody inheritance war—just another stepping stone for the hero's rise. But this cannon fodder refuses to follow the script. When the gloomy younger brother she once threatened becomes the Duke who rules the empire, when the fragile wheelchair-bound 'victim' turns out to be the Crown Prince, and when the cold stray she saved reveals himself as the Empire's prophesied Son of God—she realizes everyone around her is hiding earth-shattering secrets. Fine. She'll steal the male lead's golden road to success and leave him with nothing. Bu…