On a fateful day in summer, 2016, a strange event occurred worldwide. On that day, normal people the world over stared in shock at the strange, blue windows that appeared in front of their eyes, describing the strange events that were transpiring around them. On that day, all the people earthlings knew who were between 12-18 years of age had mysteriously disappeared, with nothing but the blue windows to explain.

At around mid-morning, mere moments before the windows appeared, a sudden flash of light, even indoors, shocked the people of Earth, waking them, or causing them to pay shocked attention to the windows. In addition, those who looked outside on that day, would claim to have seen strange crystal formations hanging in the sky, from which the penetrating light shot from. The crystal formations hung in the sky for a full 24-hour period, before emitting another final flash, and fading into the sky.

Scientists the world round were puzzling on how this was even possible, or mourning the sudden disappearance of their children. Religious groups took the event to prove the existence of their gods or goddesses, and conspiracy theorists claimed that it was all just a government ran plot to usurp the peace.

The strange formations were observed to be emitting forms of... something which was measurable with modern equipment, but yet completely different to anything ever seen before - perhaps the cause of the upheaval, with many people claiming to have being able to feel it themselves at the time.

Overall, the disappearance of teenagers the world over caused the greatest impact, with large amounts of personal assets going unclaimable due to combinations of law and protesters, parents grieving, fearing that their loss was final, and businesses and schools collapsing around the disappearance. With high schools almost empty, and no teenagers of age to fill jobs many shops needed to be done, employment demand soared to new heights, for those who could adapt to this change, and some jobs and industries temporarily collapsed, waiting for children to grow to the required age to fill placements in schools, for example. Due to this, people were fired from their jobs at a similar rate to unemployment, causing both stability and instability in communities.

That fateful day forever changed the people of Earth, and would be remembered with disbelief, horror, and sadness when looking back, not to mention the day a new enemy was created in the hearts of humanity as a whole...