Trunks returns from the future to train with Goku and Vegeta. However, it disappears without warning. Then the mysterious Fu bursts in, telling them...
After years of experiments, three researchers finally create Ninja-Gum. This substance awakens dormant power within people descended from ninjas, but...
In the era when samurai controlled Japan... The Masked Demons annihilated all but one member of the Shinsengumi, who had worked to maintain the peace...
