- King Astron (キング アストロン King Astron) and Queen Acliria (クィーン キセイカ Queen Kiseika)
- The Elemental Four (Apollo♂ the Flame, Neptune♀ the Sea, Atlas♂ the Earth, and Hera♀ the Sky;
- Element4 - Current - Former
- Apollo - Flanagan (ホテリュ Hoteryu) - Flannery (アスナ Asuna)
- Neptune - Marya (ナミナ Namina) - Celvin (カイジン Kaijin)
- Atlas - Terran (ダイチ Daichi) - Clayla (リクネ Rikune)
- Hera - Alyana (テンラー Tenraa) - Winburg (オゾラ Ozora)
About 10 years ago, there was an empire named Nebula Empire, which was ruled by King Astron. King Astron and his wife, Queen Acliria, have a daughter, named Astilla. Their daughter has a special ability, she can talk with Pokemon. All the resident in this empire including their king and queen, really love Pokemon. Human and Pokemon work, play, having fun together, and the human never even think that Pokemon are tool. But, when a moon eclipse occurred, a Motsoil that gone wild for an unknown reason, rampaged around the empire and causing chaos at that night. They assumed that there is a demon that controlled it. Then they agreed to seal the demon through 'kill' the Pokemon. Everyone agreed with that, except Astilla. She refused to obey his father's order and tried to 'talk' with that Motsoil. Astron tried to stop her, but she keep refuse the 'killing' idea. Then she finally met the Motsoil and try to talk with it, but the Motsoil hit her with Psychic instead. As a result, Astilla died. Astrona and Acliria shocked. Astron became very angry and since that time, he hate Pokemon and always think that they're merely only living things for tools. He never think that Pokemon is friend anymore, because of thinking they're friend, his daughter died. And also since then Queen Acliria never smile and always crying. Then they created Team Nebula, and aiming to erase all Pokemon's emotions and feelings(if there are no feeling and emotions, Pokemon can't rampage or angry even a demon control them). They believed that Verminix(Azure) or Azuryu(Vermilion) can do that (Actually they think that the legendary can grant their wish, but, only Jirachi and The Compass-Directions Quartet's leader can do that). After that incident, Nebula Empire ruined into the Trash Castle.
They recruited the first Elemental Four, which most of them(all except Flannery) were brainwashed.
- Trash Castle
- To erase the Pokemon's feeling and emotion.