Rositte is a "reincarnated one," someone who recalls their past life from another world, but is framed for the murder of Duke Luchiaden. She goes back in time right before his death to save him and is shocked when he says she might be the emperor's lost daughter, foretold to be the last reincarnated one! However, Carina, another reincarnated one, insists she's the true daughter. Will Rositte be able to uncover the truth about her origins, or will Carina be crowned as imperial princess instead?

Embodying the culture that I experienced in my previous life, a ‘reincarnator’ with the ability to make the empire flourish.

Rossite is able to use her unique ability, the power of implementation. Being bullied by the reincarnator Karina she was even accused of attempting to murder the Duke of Identino, which lead to her execution. At that moment, she recalled the memories of her past life as a paramedic, Rossite realizes that she is the real reincarnator and regresses in the brink of death. The first thing Rossite saw after her regression was Duke Identino, saying he has come to find the ‘Emperor’s lost daughter.’ Rossite goes to the imperial capital with him, but even there, Karina slanders Rossite by spreading rumors that she is a fake