Ouji-sama Nado Irimasen!

Rosa Kreutzer, a self-absorbed marquise, is on her way home from a play with Prince Alex when she is kicked by a horse and injured. However, in the midst of her ordeal, Rosa has an epiphany: she has been reincarnated into the world of a comic book she loved in her previous life, and is now a minor villainess destined for poisoning. In her past life, Rosa died from overwork as a stock trader, and in this life, she is a villainess scheduled for a tragic demise. Born into a life of wealth and privilege, Rosa decides to defy her predetermined fate and live life on her own terms, unencumbered by the constraints of her previous existence. With her vast resources and power at her disposal, Rosa sets out to forge a new path, one that will allow her to live a life of freedom and celebrity, untainted by the burden of romantic entanglements.