Grace Whitmore and her sister Sarah Whitmore beg to make ends meet. Sarah lives a good life after being adopted by Henry Whitmore, but Grace starved to death in the snow. Grace, who was reborn, replaced her sister but was afraid of being exposed and secretly developed feelings for Henry. Grace unexpectedly learned that Henry was aware of the substitution. Grace suddenly realized that she was not Henry's kind-hearted sister, but a carefully selected chess piece by him!
