The Cannon Fodder Foil? The Wicked Mother-in-Law Flips the Table and Quits

[Farming] + [Lucky Charm] + [Foil] + [Fake Young Master] + [Wicked Mother-in-Law]

Reborn, she discovers she's the doomed foil in a novel about a lucky charm?

They have the same mother-in-law, but the other woman's son goes into the mountains and brings home a wild boar. Her sons go into the mountains and come back dead or injured: she loses three sons in a single day?!

The other woman's daughter meets a benefactor and builds a career in an embroidery workshop. Her daughter is not only jilted, but falls for a swindler and gets sold to a brothel?!

The other woman's youngest son meets a benefactor, attends school, and earns top honors. Her son is framed, gets embroiled in a murder case, and is exiled?!

Her husband goes to take revenge but gets beaten to death. Her grandchildren fall into the hands of human traffickers. Her eldest daughter-in-law, distraught, hangs herself, while her second daughter-in-law smashes her head against the gate and dies on the spot. Unable to bear it, she closes her eyes, and the whole family is finished?!

And all of this happens because that other family had a