Akuyaku Reijou ni Tensei shita Watashi to Akuyaku Ouji ni Tensei shita Ore

Honoka, a thirty-year-old working girl, fell down the stairs after her fiancé told her that he wanted to break up. The next moment, she was in the world of "Fated, Love: A Cinderella Story," a light novel that her sister was into. She is now Clarisse, a seventeen-year-old aristocrat. Honoka knows that she is going to be a villainess along with Eduard, brother of Crown Prince Arnold. She decides to change her fate and live happily in this world. When she meets Eduard for the first time, they fall in love almost instantly. To her surprise, Eduard is nothing like the villain described in the book. He is gentle, clever and nice... and handsome! She never knew that Eduard too, had reincarnated from the world she came from. (Source: Kadokawa)