One day, something extraordinary occurred: everyone on Earth was transported into a fantasy world where powers could be obtained. There were levels and experience points; you started at level 1, while others were over level 100, 200, or even 1000. Characters from various anime were also present, people you never imagined seeing in real life. Naturally, some used their powers for evil and control. Today, you are ready to start leveling up. You step outside, prepared to face this new world.