Duty to protect

Mannette and Damien Al Ghul were born at the same time but lived very different lives. As an heir, Damien was treasured. As a female, Marinette was not. She was passed from general to general. Trained and tortured until she was among the deadliest assassins in the league. Her only purpose? To protect her twin brother at all cost. She knew nothing else but to follow orders.

When they met Bruce for the first time, he sought to right this wrong.

Of course... Bruce is Bruce, so his methods were questionable at best when he sent her to Paris to be with old friends and away from the boy she swore to protect.