Okitara 20-nengo Nandesu kedo!: Akuyaku Reijou no Sonogo no Sonogo

Fiolia is the daughter of a duke, thoughtful of her people and active in her fiefdom. One day, she is poisoned by the heroine of an otome game and falls into a coma. When she wakes up, she regains the memories of a previous life... but finds out twenty years have passed?!

Fiolia learns of the scheming that the game heroine, Anne Rose, has been up to and that has been damaging the country. In order to return the favor to Anne Rose and save the people, she must act! "Just you wait, Anne Rose. You'll pay for what you did!" The refreshing revenge fantasy of a handsome lady who is always outside the norm!!

(Source: MU)