Sehun woke up in his normal room at his not so normal school. The Academy for Supernaturally Talented, or TAST as some called it, was a boarding school for those with special abilities. A kind of safe haven for those who were 'different'. Sehun's roommate was gone, probably training somewhere. That was one of the schools main purposes.To train those with abilities to use them for good, to educate those who didn't fit in the regular school system, and to hide and protect them from a society that would experiment on them at a moment's notice. 

The school was hidden in the deep reaches of the ocean. Mainly because they wanted a place no one would ever look, and also because the man who created this place, Kim Joonmyun, was especially talented with water. He created a place like this when he found out that he was not the only one that possesed such talents. People around the world had hidden talents that were just waiting to be exploited by malicious people. So he set out with his partner and best friend, Kris, to find other people to help with their cause. Soon enough they had gathered many people to help them. Scientists that could build a perfect school for the outcasts of the world. But something was off. Something had happened for Kris to become, well to put it simply, evil. Taking scientists, he started his plans to build a school that taught the students to wreak havoc on the world that had shut them out. Soon, The Academy of Fallen Angels, or TAFA, was created. 

This school was located exactly halway across the world from TAST, and was in the sky hidden with cloud projections surrounding it. The perfect place for Kris, considering his abilities. The two schools have been rivals ever since.