A romance story set in the Meiji era. Born into a prestigious family and blessed with good looks, Satoko is said to have a short life expectancy. But suddenly, her life is targeted by a mysterious killer...!?
In order to survive on the spot, Satoko makes a "proposal" for the killer...!? - A young lady and an assassin... A contract marriage love suspense between two people who should never meet!

Promise Cinderella's official spin-off depicting the daily life of the high school boy and the divorced youg woman, half a year after the first chapter of the main series.

Tachibana Oreco's Twitter: @oreco730‏: https://twitter.com/oreco730

Hayame leads a modest, peaceful life as a housewife. One day she meets a jackass student named Issei, but thinks little of it.
As Hayame's life falls apart around her, Issei makes an unexpected proposal which will turn her life upside-down.