There is a story for each of the four forces, Shu, Wei, Wu and Samurai Warriors.

Dynasty Warriors – Shu
After Lui Bei went missing, the Shu forces continue to lose their battles against Orochi. Many have been captured by Orochi, gone missing or joined the opposing forces and the Shu force has almost spread out. Zhao Yun has become a prisoner to Orochi and under great despair for not being able to protect Liu Bei when he receives surprising new information...

Dynasty Warriors – Wei
Cao Cao disappears in the battle against Orochi’s force without a trace. Cao Pi takes over and allied Wei with Orochi. Orochi is impressed with the Wei force’s strength and decides to join forces to fight against the other forces. Cao Pi agrees and they become allies. However, there are commanders in the Wei force who refuse to surrender and join other Orochi opposing forces. Orochi then begins to command Cao Pi to conquer the opposing forces where his former followers fled and Cao Pi obediently follows Orochi’s command...

Dynasty Warriors – Wu
The Wu force loses the battle against Orochi. Many soldiers have been kidnapped, including Sun Jian. Orochi demands the Wu force for the rebels who are opposing his force in exchange for the release of the prisoners. Sun Ce reluctantly heads for battle against the Orochi opposing forces...

Samurai Warriors
Oda Nobunaga, Takeda Shingen and Uesugi Kenshin have barely kept their forces in tact and continue to oppose Orochi’s force. However, even under these difficult circumstances it still appears they will not cooperate to fight together. Each were busy merging with the different Orochi-opposing forces that were spread out throughout the region...