Twenty years into the future, a city now called Tokyo has developed into one of the few world-class high-tech centers, Tokyo City. The main character, Ken Kanzaki, is a young investigator assigned to the criminal investigation section of the Metropolital Police. He is one of the finest sharp shooters in the Police.One day, Ken is ordered to provide security for a party held by for Zaizen Konzern, a world-class plutocracy. All of a sudden, spector robots appear and distrupt the party. Zaizen, a commander-in-chief, is killed and both Ken and Jun. Zaizen's son,are fatally injured by the robots. Two of the party's guests, an auto-racer, Ryo Aguri,and a wresler, Go Goda, also receive serious injuries. Three severely injured young men are operated upon by scientists from the Metropolitan Police. Several days later, a robot corp led by a mysterious organization called Ido appears in the floating-town of the Tokyo Bay. But the Police and the Army have no effective strategies to contain them. At that moment, three young men attired in mechanical suits enter. They are the very three young men, Ken, Ryo and Go, who have been turned into the cyborg investigators through the operation. They call themselves Armored Police Metal Jacks. Metal Jacks, dazzlingly switching from Jack Suits to Jack Armors, completely demolish the robot corp and achieve victory, thus signals the beginning of the battle between the high-tech criminals and Metal Jacks with a futuristic Tokyo City in the background.

When the secret occult society, Shiromorishuua, sends a huge monster to attack Tokyo, ASY, a peace-keeping organization in Japan, retaliates with a Gousen (metal faery). ASY's Gousen annihilates the creature after driving it into open ocean. Although successful, a surprise attack follows. A girl, floating in midair and glowing with radiance, strikes with a beam of light. This girl is Rouran. She knows neither her identity, her origins, nor why whenever she senses the Gousen or Kyoushi (reanimated corpses) she transforms into an avenging angel. As Rouran worries about her mysterious existence, Tetsuya kindly watches over her in Tokyo Arcadia, a settlement of expatriates and dissidents. (Source: AniDB)

A.D. 2087 - the United Lunar Empire Giganos wages war on the Earth Federation Military to take control of the planet and establish a rebirth of the human race. During an invasion of a colony by Giganos' forces, three civilian men stumble upon a trio of top-secret Metal Armor units called Dragonars and pilot them to combat the enemy forces.

Enma is a character created by the genius manga artist Go Nagai. Now, the popular character makes his appearance in an alluring Japanese horror anime for adults. It's a hair-raising erotic suspense in which Enma takes on complicated and gruesome incidents caused by demons who lurk in the darkness. But humans have lit up the darkness of the night with neon lights and turned their world into one that never sleeps, so demons now lurk in the darkness of the human heart. Unfulfilled hearts, suppressed hearts, despair,...such darkness of the heart is the place they lurk. Enma is the Demon Prince of the Underworld, a demon Born of Fire. His mission is to take back or destroy demons that have escaped to the human world from the Underworld. Along with his partner, Princess Yukihime, Born of Ice, and the monster, Kapaeru, Enma sets up Enma's Detective Agency. Tonight, like any other night, they will roam the sleepless city. Horrific incidents that could not possibly be human acts occur one after another. The stench of evil lingers at the scene... Enma's fire rips through the darkness! (Source: Bandai Entertainment)