A hundred years ago, District 9 was a home to the fiercest monsters that the once prosperous district turned into complete destruction.

Until one day, eight unknown men with eight precious gems and supernatural capabilities defeated the monsters. Together, they built the Gates which kept the District safe from any monster attack.

These eight men were seen as heroes and was called the District's Eight. From then, the District lived in peace and prosperity.

After the last of the District's Eight passed due to old age, the gemstones they owned were placed in the district's museum and has remained dormant for years.

This story has been passes on from generation to generation.
As much as the elders believed this story, the younger ones thought of the story as fiction and feared that in years to come, the District's story will be forgotten.

On the 100th year anniversary of District 9's revival, everyone was occupied with festivities. It was a perfect day for a celebration, not until the eight stones were found to be missing from the district museum.