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Japanese name:	金色の魔王
Nickname:	Lord of Nightmares, Lord of Dreams that Terrify, He Who Shines Like Gold upon the Sea of Chaos, The Golden Lord, L-Sama

The Lord of Nightmares (金色の魔王（ロード・オブ・ナイトメア） Rōdo obu Naitomea/Konjiki no Maō?) is the demiurge of the Slayers universe. It has no defined gender, however most people tend to associate female characteristics to the Lord of Nightmares because of the finale of Slayers NEXT in which it possessed Lina's body, thus taking her form but is not necessary to consider a defined sex. Unlike most creator deities in fiction, the Lord of Nightmares ("LoN") is not considered benevolent and humans don't worship it. Even among those steeped in the magical arts, few are aware of its existence, however the Mazoku or "demon race" are, and refer to it as "the Mother of All Beings".

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