Zuo Ci revealed startling news to Zhao Yun, which led him to embark upon a quest with help from unexpected allies. He is later rescued by Zuo Ci, Yoshihiro Shimazu and Xing Cai. Zhao Yun was captured by Orochi's forces and held prisoner in Ueda Castle. Many Shu officers were captured by Orochi, went missing, or joined other forces. In the Shu Han story, the Shu forces were in shambles after their battle with Orochi. However, the character selection screen still places all the characters in their original positions. Because of the storyline, most of the characters have split from their respective factions in the original games and have been forced into other scenarios. Characters from different factions band together in each subplot to confront Orochi.
Each subplot is named after one of the Three Kingdoms, and one from the perspective of the Samurai Warriors characters. More characters are unlocked as the player progresses through the story or satisfies certain conditions in certain stages. Each subplot starts the player with three characters. The story is told in four separate but related subplots. By creating a twisted new world and bringing together warriors from the Three Kingdoms era of China and the Warring States period of Japan (more than 1,300 years apart in history), Orochi wished to test the might of the warriors of these two eras. The fictional events of the game begin when the Serpent King Orochi created a rift in time and space. See also: List of Samurai Warriors characters and List of Warriors Orochi characters
A PC version was released in North America on March 25, 2008. The game was ported to the PlayStation Portable, released in Japan on February 2008, March 25 in North America, and March 28 in Europe. The game came out for the Xbox 360 in Japan on September 13, and the European version came out on the same date as the PlayStation 2 version in the North America. The game was released on March 21, 2007, in Japan, September 18 in North America, September 21 in Europe, September 27 in Australia and September 28 in New Zealand. It is a crossover of two of Koei's popular video game series, Dynasty Warriors and Samurai Warriors (specifically Dynasty Warriors 5 and Samurai Warriors 2) and the first title in the Warriors Orochi series. Warriors Orochi ( 無双OROCHI, Musō Orochi) is a beat 'em up video game for PlayStation 2 and Xbox 360, developed by Koei and Omega Force.