How can a time-limited evil gain her vengeance?

I just wanted to be loved.
After awakening the power of an alchemist, he constantly made gold for his family on the verge of bankruptcy.
Even though I know it’s a life-saver.
But when she died of attempted murder, no one was with her.
Wearing the dress bought with her life, the younger sister shed false tears in the Crown Prince’s arms.
The third awakening accomplished by being pecked by a bird’s beak.
Milvia got her hands on the time.
Returning to the past, she has only one year left to live.
I will take revenge in it.
So I spent the night with a man called a mad knight. A man who had only been given the baron title now.
The only price for giving her unimaginable wealth is to keep her by her side and pretend to love her.
I will give you everything my family originally had.
Just don’t let me fall apart while I get my revenge.
…… But why does a proposal come from a peasant family that is said to dominate the dark district?

How can a time-limited evil gain her vengeance?