My Sister Ran, So I Married the Don

Isabella saved a mob boss's grandmother, but her sister stole the credit. When the Moretti family demands the real hero's hand in marriage, Isabella's own fiancé abandons her for her sister, leaving Isabella to marry the man they call The Butcher. They say he's a monster. They're wrong. Now her ex won't let go, her sister won't stop scheming, and the most feared man in the city has only one soft spot: her.