The Defense Agency's Super Soldiers and the Priests of the Dark Order are in Shinjuku, the Demon City. The warring factions have put their ongoing battle on hold, as they all search frantically - but separately - for the old man that possesses extraordinary powers. This man is believed to be "the god," and is allegedly involved in a particular occurrence that has the city in a frantic and precarious state - somehow, the city has entered a modern-day Ice Age! Among those who search for the god is Sayaka Rama and luckily, she has Kyoya, a master of the martial art of Nenpo, watching her back. Together, the two head underground to face terror, in the form of hideous creatures, and to find the truth about Shinjuku.