Years after Ryu Hayabusa fought back the malevolent Dark Dragon, the beast's husk still coils around Tokyo, drenching the quarantined, evacuated city in a cursed rain that bleeds the underworld into the streets. Into this ruined, rain-soaked metropolis comes Yakumo, a young ninja of the Raven Clan, sent to fulfill an ancient prophecy and atone for his bloodline by finally destroying the Dark Dragon. His path leads him to the entity's priestess, Seori, and into conflict with the paramilitary order guarding the city, as well as Ryu Hayabusa himself. Battling daemons across the cyberpunk cityscape, Yakumo must master his powers and confront the forces standing between him and the Dark Dragon.