Sick Prince is so Scheming

In her previous life, she was the queen of a country whose name existed and who died. The lofty emperor had promised her millions of glory, but he hadn't been able to give her the slightest bit of care or love. The Shu girl that he had seen as his own sister had taken her seat, and had even set fire to the cold palace that imprisoned her! Let all her relatives die with her! When she woke up again, she was fifteen years old. The hatred of seizing the throne, the hatred of killing her family, she swore to return it a thousand times to that vicious elder sister! Who would have thought that they would provoke a short-lived prince? Who would tell her that this person was completely different from what the rumors said …?