12 1st year highschool boys played a hit-game on their school, Chess Wonderland, but never thinking of it the same way as they do. Once virus hacks, it changes the code, messing the script of the game, making it realistic. In this case, they should find the Nature Queens to fix the code.  

She was a girl possessed by a demon. She percieved her sickness as the reason she was not loved. She only hoped to be loved. She wished for a spell to cure her sickness. What she obtained was a spell to trade bodies.