Tokyo-to located somewhere in Asia and that it cannot be found on any map. Though it is heavily implied to be in japan is a large city that can be just as large if not a bit larger than the actual Tokyo. Separated into four large districts Shibuya-cho, Benten-cho, Kogane-cho and Akiba-cho. Though it has a secret as well unknown to most Tokyo-to was build upon a great barrier that kept the magic and the "real" world separate. Thus masked heroes and magical girls is a common site protecting the people from escaped beasts that make it past the barrier. However despite these heroes hard work the barrier is weakening and more and more beasts are being born on a near daily basis.

The city was peaceful even for the heroes nothing large and domineering was popping up no beasts or villain organizations was popping up with evil schemes it was quiet as some veterans would put it and that by itself often puts even the most hardened warriors at edge. Though peace no matter how brief should be enjoyed for it is often times of peace no matter how uneasy that offers respite. It was than that things changed in a sudden turn of events Beasts mere fodder at best appeared in droves coming out of every nook and cranny as they slowly made their way out. Quickly over running the city and causing mass hysteria due to the large numbers and their rather sudden appearance.