'Till the day I die

Fleur Arleigh kept only one promise her entire life.
With her Golden flowing hair and deep clear green eyes she was a beauty indeed. However, unfortunately, she died saving her younger sister's life as she exchanged herself in a kidnap and got shot as a result.
As a 22 years old successful doctor in mathematics and the owner of a big engineering company, she was supposedly surrounded by males everywhere she went, added her good looks, respected background and kind personality, difficult a man that would not fall for the woman.
Still...she was never kissed.
And that was the promise that she kept ever since she was a child.
It was a silly promise at first, in one of those teasing family moments, but somehow, even after she forgot about it, it was still on the back of her mind, as second instinct and so, it never happened.
Therefore, she died and was pushed into a group of people that kept huge promises, with huge morals and believes.
One promised that he would devote himself to discover the cure for a rare disease that killed his father until the day he died.
Another promised that she would do her best to overcome the tyranny of her country until the day she dies.
And Another promised that he would fight to save a rare breed of whales from extinction till the day he dies.
Nevertheless, that was not all.
They were not there at a random pick.
But because they were supposed to play a game.
A game for only those people that could hold their promises could go.
A game to help people keep their promises and in exchange break yours in the process.
A game called "till the day I die" system.