When The Villainess Loves

I got to possess the body of a villainess, whose life was limited to end soon.
That’s okay, because I can cure the disease!
The goal is a life, where I can do whatever I want to!
First, I decided to educate the characters of my favorite novel. However, the reaction of the people around me, who called me a villainess, were strange.
“How can you laugh like that even though you’re dying soon?”