I Transmigrated as the Villainous Official's Cannon-Fodder Ex-Wife with a Trillion in Supplies

She transmigrated into the role of a doomed first wife to a great villain. She was supposed to mistreat her own children, raising them into little villains who would exact brutal revenge on her, then throw her corpse to the wolves after she died.

Seeing how the plot was going, Yu Miaoyun threw in the towel. She wanted to live for herself and get a divorce!

With a space stocked with trillions in supplies, she worked hard to build her fortune. But when she noticed her belly growing bigger by the day, Yu Miaoyun was dumbfounded. When had she gotten pregnant?

Not only that, the great villain became a thoughtful, doting husband, while the little villains turned obedient, sensible, and ambitious...

Why were the characters and plot nothing like they were supposed to be?