IN THE YEAR 2017, scientists dispatched to investigate a seismic event off of Continental Europe discovered a newly emerged landmass; which was host to a massive, yet stable rift in our reality. Within hours of landing, they found what no one would have ever expected: dozens of equally confused elf-like magic wielders emerging through the rift. The Erdani had crossed into our world.

Shortly after, the Japanese government announced to the world the discovery of a second portal in the Japanese archipelago; and their knowledge of the race beyond it. Possessing speed and agility surpassing human limits, the element-manipulating Jodojin had been revealed.

In the decades that followed, the three races slowly but surely built their worlds as a place where all could live side by side.

60 years have passed since then, and many milestones have been crossed. But the greatest achievement yet for most in all three dimensions is the establishment of institutions where the next generations of all three races can learn and work together. While a number of them exist in all three dimensions, people always think of one when asked for the greatest.

They call it the Hugh Everett Academy of Tri-Dimensional Education.

The attending high school students call it... 3D High.