Dead or Alive / Ninja Gaiden

The Dead or Alive and Ninja Gaiden franchises exist within a shared universe, with Ninja Gaiden serving as a prequel to the events of the Dead or Alive tournament. The stories of both series are deeply connected through common characters, organizations, and a continuous narrative timeline The core plot of the Dead or Alive series revolves around the "Dead or Alive World Combat Championship," a high-stakes martial arts tournament held by the powerful DOATEC corporation The narrative primarily focuses on the conflict between DOATEC and the Mugen Tenshin Ninja Clan. It follows ninja princess Kasumi, who becomes a fugitive for leaving her village to seek revenge, and her half-sister Ayane, who is initially sent to hunt her down . As the series progresses, it is revealed that DOATEC's corrupt leadership, led by Victor Donovan, is using the tournaments to kidnap fighters for a secret bio-weapon project, aiming to create the ultimate human weapon The Ninja Gaiden series, specifically the 2004 reboot, is set two years before the first Dead or Alive tournament and follows the ninja Ryu Hayabusa The plot kicks off when his village is attacked and the sacred Dark Dragon Blade is stolen, sending him on a quest for vengeance against the Vigoor Empire Ryu, who is a close friend of Kasumi's brother, Hayate, is a central character who bridges the two series, appearing as a veteran fighter in the Dead or Alive tournaments after his own adventures . This establishes his backstory and explains his role as a protector in the Dead or Alive narrative, weaving the two plots together into a single, overarching timeline

The Dead or Alive and Ninja Gaiden franchises exist within a shared universe, with Ninja Gaiden serving as a prequel to the events of the Dead or Alive tournament. The stories of both series are deeply connected through common characters, organizations, and a continuous narrative timeline The core plot of the Dead or Alive series revolves around the "Dead or Alive World Combat Championship," a high-stakes martial arts tournament held by the powerful DOATEC corporation The narrative primarily focuses on the conflict between DOATEC and the Mugen Tenshin Ninja Clan. It follows ninja princess Kasumi, who becomes a fugitive for leaving her village to seek revenge, and her half-sister Ayane, who is initially sent to hunt her down . As the series progresses, it is revealed that DOATEC's corrupt leadership, led by Victor Donovan, is using the tournaments to kidnap fighters for a secret bio-weapon project, aiming to create the ultimate human weapon The Ninja Gaiden series, specifically the 2004 reboot, is set two years before the first Dead or Alive tournament and follows the ninja Ryu Hayabusa The plot kicks off when his village is attacked and the sacred Dark Dragon Blade is stolen, sending him on a quest for vengeance against the Vigoor Empire Ryu, who is a close friend of Kasumi's brother, Hayate, is a central character who bridges the two series, appearing as a veteran fighter in the Dead or Alive tournaments after his own adventures . This establishes his backstory and explains his role as a protector in the Dead or Alive narrative, weaving the two plots together into a single, overarching timeline