Samurai Warriors is a Japanese anime adaptation of Samurai Warriors 4-II. It takes place after the events of its previous animated TV special. Original characters appeared in this narrative to deviate from its base. Voice actors from the game reprise their roles for their respective characters.

Samurai Warriors 4, known in Japan as Sengoku Musou 4 (戦国無双4), is a hack and slash game by Koei Tecmo, and sequel to Samurai Warriors 3. Unlike past Samurai Warriors games, this one only has Japanese voice overs.