Hiroe, a high school girl, kills Takezo Murata, a man who is an enkou dating partner, from a little momentum. Hiroe abandons Takezo's corpse with four friends, but Takezo revives.
Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.
