Tensei shita Ore ga Kawaii Sugiru node, Aisare Chara wo Mezashite Ganbarimasu

I was hit by a car while protecting a child, and before I knew it, I had been reincarnated in another world as Yumie Granbell, the extraordinarily beautiful daughter of a count. The Granbell family, into which I was born in this life, is a prestigious magical family with considerable influence. I thought I had hit the jackpot, reincarnating into a winning life, but it turned out that the family was on the verge of collapse. And to make things worse, the cause of that collapse was... ME!? Now, I want to finally obtain the family I've always dreamed of! With my cuteness, I'll solve any problem! (Source: Kadokawa, translated)