I'll Become a Villainess That Will Go Down in History ― The More of a Villainess I Become, the More the Prince will Dote on Me
Ongoing | Okido Izumi,Hoshi Akari, Hayase Jyun | 2000 released
This is strongly wish fulfillment, but still touches on serious topics at time. So far, the manga does a good job at following the plot of the novel while also toning done some of the over-exaggerated aspects.
I’m a Villainous Daughter, so I’m going to keep the Last Boss