Paradius

Paradius, known as named Dōma (usually written in English as Doma) in the Japanese version, is an organization lead by Dartz during the "Waking the Dragons" arc of Yu-Gi-Oh!. It hid the secret activities of the Orichalcos. Its insignia is similar to "The Seal of Orichalcos. It is said that Paradius owns a little of every company in the world. This company briefly took control of both KaibaCorp and Industrial Illusions. The building itself appears to be a type of a castle. In Dartz's conference room he has a mirror that transport him from his sea lair to Paradius headquarters.

Supreme Leader

 * Dartz, creator of organization, loses soul in duel with Yami Yugi/Seto Kaiba

Three Swordsmen

 * Alister, joined after brother was killed (kidnapped in the English version), lost soul in second duel with Seto Kaiba
 * Valon, joined after being held captive in detention center, lost soul in duel with Joey Wheeler
 * Rafael, joined after losing his family in a shipwreck, lost soul when enraged against Dartz

Other Members

 * Rex Raptor, joined in thirst for power, lost soul in duel with Joey Wheeler.
 * Weevil Underwood, joined in thirst for power, lost soul in duel with Yami Yugi.
 * Mai Valentine, joined to get rid of Joey Wheeler and get stronger, lost soul in off-screen duel with Rafael
 * Grerimo, joined for unknown reason, lost soul in duel with Yami Yugi/Yugi Moto
 * Yami Yugi, temporarily.

Goals
Paradius use a card named "The Seal of Orichalcos to steal the souls of duelist's, This is to awake a legendary creature name as "The Great Leviathan. It was till the end of the Waking the Dragons Saga, until members realized Dartz caused all the incidents to encourage members to join.

Duels
This building also hosted the duels of Mai Valentine against Rafael and the rematch between Atem and Rafael.