Zeitaku Zanmai Shitai no desu! ~Tensei Shita no ni Binbou nante Yurusenai no de, Mahou de Ryouchi Kaikaku~

I was poor in my previous life, but I can't allow myself to be poor in my reincarnation! A heartwarming otherworldly reincarnation fantasy of a villainess. On her fifth birthday, Sallestia remembers her previous life and her life of poverty with the shock of a blow to the head. And now, to her surprise, she understands that she has been reincarnated as the villainess in an Otome game! "I was poor in my previous life, and now that I've been reincarnated as a nobleman's daughter, I'm going to enjoy all the luxuries!" But the servants and villagers of the estate are all skinny and on the verge of starvation? I can't allow myself to be poor in my reincarnation! I'll use magic to reform the estate and make the villagers and me rich.

Official JP: Comic Earth Star, Official channel of Comic Earth Star in Nico Nico Seiga

Original webnovel: Shousetsuka ni Narou