A young boy named Jiro finds his mother and sister murdered in his home. Falsely accused of the crime, he flees from his village and meets a priest named Tenkai, who has him kill a rogue ninja named Tarouza. After fulfilling that task, Jiro undergoes training to become a master assassin. Many years later, Jiro finds out that he was an orphan and his real father was Tarouza, who had worked for Tenkai until he aborted his mission when he fell in love with an Ainu woman. The young ninja discovers that the Shogunate was to retrieve the lost treasure of Captain Kidd and use it to once again isolate Japan from the rest of the world. Using the clues that Tarouza had kept secret, Jiro—along with the female ninja Oyuki and a slave named Sam—travels to Russia and America to search for the treasure in hopes of using it to extract revenge from Tenkai. (Source: ANN)

When Ryu returns to pay homage to his deceased mentor, Gouken, he is tormented by disturbing memories of his master's killer. In a quest to become a true martial arts master, Ryu sets out to hone his street fighting skills and to deliver himself from the haunting legacy of the Dark Hadou. But the ultimate test of his new power can only be accomplished through one last fateful confrontation with his arch-nemesis, Gouki (Akuma).

The OVA Special which teams the Anime version of the legendary Henshin Hero Jiro/Jinzou Ningen Kikaider with another Toei Henshin Hero Inazuman.

Amane Todoroki is a young girl who is straightforward but also unthinking. She will try her very best in everything and say, "I don't know how to answer you if you ask me whether this can be done. I just believe it can. If not, then nothing will get started!" She easily gets stuck in her thinking, but she can also get easily moved at something small and start crying.