100 Days, You Are Mine!

Warning: Mature Contents!
A deal with the devil, the only way she could save her ill sister.
Putting aside her feelings and dignity, Blue Rivers was forced to marry a stranger who was full of danger and secrets.
Nicholas Sanford, a rebellious mafia heir, who would go against every will of his father.
Gradually, the hate she feels towards her manipulative husband turned into love, leading to something deeper and complicated.
Love is timeless, but she only has 100 days to make him fall in love with her as part of the deal.
Would she succeed? Or would it only bring her to the hell of lust?