Steth is actually a small insect-like alien.
Main article: Jiya (manga) Steth arrived on Earth prior to Jiya to investigate for the galactic patrol upon arriving was astonished by beautiful thriving world. While investigating it he encountered a monster known as Vamp. After possessing him he became corrupted and decided to take over the Earth. In order to keep any other Galactic Patrolman from arriving he created a false report about the earth. After he arrived and reveals his true identity to be his former comrade Steth who took over Vamp's body and caused terror on the Earth using giant alien fleas called Mogans from the Planet Kanoi. This arrangmnet continued until Kyuumonji Yukio while possessed by Jiya shot one of the giant fleas after one of them grabbed Kaede as they swarmed the town for their usuall feeding and due to Steth enjoying the pleasure he gets from drinking the blood of young women while in Vamp's body.
After Jiya returned to his body he attempted to fight the Morgans and Vamp who had come to fight Jiya.
During the fight Steth inside of Vamp's body revealed his true identity and his plan to cause terror on the Earth. Steth was distracted by Kaede as Jiya was being powered up through the use of alcohol by Kyuumonji. When Vamp started to lose the fight his possessor Steth left his body and attempted to possess Kyuumonji's body only to be shot and killed by Kaede.
Techniques and Special Abilities
- Flight - The ability to fly by using Ki. Steth can use this ability in his natural form and while possessing Vamp.
- Ki Blast - The most basic form of energy wave.
- Finger Beam - A finger based energy wave technique. Used while possessing Vamp, to kill one of the survivors of the town he destroyed after its Police officers killed one of his giant fleas.
- Possession - The technique involves one being forcibly taking over the body of another, acquiring their power and abilities in the process.
Forms and Transformations
Main articles: Possession and Vamp While possessing Vamp, Steth gains his longevitive & durable body along with Vamp's taste for human blood. He also receives pleasure from feeding on the blood of young women. Additionally while the form is not as powerful as the Robot Suits Steth & Jiya uses, it lacks the suit's weakness of running out of energy during a fight. However Jiya is able to defeat him thanks to his suit being powered by Kaede's alcohol which allows a drunk Jiya to utilize the Drunken Fist forcing Steth out of Vamp's body.
Additionally in Vamp's body, Steth can utilize ki-based attacks and Flight.