The Cannon Fodder's Revenge

In the apocalypse, the true heiress Rhea is betrayed by her adopted daughter Rosalie Willow and her brothers. Pushed into a swarm of Blood Demons, she dies tragically. After her death, she learns she is merely cannon fodder in a novel. Reborn three months into the apocalypse, the true heiress with an Ability continuously gathers supplies, enhances her Ability, takes down the scheming Sweet Schemer and her biased family, and defies her fate.