Prologue:

The Yagami family has been the royal family for billions of years and the elements of fire and water has only been born into the royal family.

Every female that becomes pregnant and is in the Yagami family or is pregnant thanks to one of the Yagami family members must have siblings, one older and one younger.

The older will always be born with the power of fire with the younger born with the power of water.

It is a law that the siblings must become lovers, however usually the oldest must either become pregnant or make a female pregnant which must be with anyone from siblings to outsiders.

Once the female, only the ones that aren't a part of the Yagami family for this, is done giving birth to the children she is then sent far away to another city. If it's a male who helped get the older sibling pregnant then nothing will be different than it would be if an outside female got pregnant for the family as he will be sent far away to another city.

The children will be raised by the people in the palace and the siblings that are the rulers at that time until the kids will become the new rulers when they are old enough.

The cycle then repeats itself over and over for years and years.

However if no female becomes pregnant then the current king, the father of the two siblings, must then make a decision on what to do.

The choices are that he can make a third child with the mother of the siblings or he kills the one that isn't making any children or both of the children; but he must also kill the female who gave birth to the children as punishment for making a child or children that is having trouble making children.

Then the king and or Queen must have another child one way or another, or two more if both siblings were killed, so hopefully the line will continue on the same path it always has been.

If the third child becomes pregnant or gets another person pregnant then they have the chance to take the throne along with their children.

There is another rule of the Yagami family, if the younger one that has the power over water kills the oldest one that has the power over fire then the youngest will die as well. The oldest can kill the youngest but at the price of losing the power over fire since the two siblings powers support each other's powers keeping them as strong as each other's love. Once the oldest or youngest loses his or her powers then he or she is not deemed fit to rule anymore thus killed so the next heirs can take over.

Some say it is the Yagami family curse with rumors of a witch casting a curse onto the family many years ago at the first time the family became rulers making this be true but there is absolutely no proof of that.

No matter how it started it is existing and a part of how the Yagami family works.

Light and Sayu are next in line for the throne and this is where our story begins.

AN:

PLEASE NOTE! IMPORTANT!

Please let me tell you honestly that I am NOT a fan of Sayu and Light together but for the sake of this old story, I found when I was digging in an old pile of folders and binders, I will put up with the cringing on any parts of Sayu X Light to get this story done since I like the main idea of the entire story other than the one pairing. Please bear with me and we will try to work through this to get on with the story.

I only like to pair Light up with L and that's it!

AND yes quite a good chunk of this story is old writing just so you know.

Mello.