皇帝の隠し子の令嬢は暴れん坊公爵令息の手綱を握る。

Letizia is a young lady born from an accident. She is treated coldly by her mother's family, who took her in, but she has survived by utilizing her magic and intelligence. The only relative she can open her heart to is her male cousin, who is one year older than her. The story of the strongest heroine, Letizia—a reincarnated lady who is the secret child of the Emperor—begins!!