In an ambitious endeavor to put an end to this invisible, hungry massacre, warriors called Flame Hazes relentlessly fight these monsters. These merciless murderers only leave behind scant remainders of souls called 'Torches,' which are mere residues that will eventually be destroyed, along with the very fact of the victims' existence from the minds of the living. The world has become a slaughtering ground for the Crimson Denizens, mysterious beings from a parallel universe who thrive on the life energy of humans.
