Demoner har vaknat till liv och mänskligheten är i upplösning. En känslig demonpojke leds in i ett brutalt och degenererat krig mot ondskan av sin mystiske vän Ryo.

Koshiro and Nanoka fall deeply in love, then discover they are the children of their divorced estranged parents... making them brother and sister. How will their relationship turn out?

Five students at the largest public high school in Brooklyn take on a chaotic world as they fight to succeed, survive, break free and seize the future.