Fullmace as shown in Knight of Aqualord volume 2.
Fullmace (Japanese: フルメーズ Romaji: furumēzu) is a middle-ranking mazoku, serving under Deep Sea Dolphin. She makes her appearance in volume two of Knight of Aqualord. She is completely human in appearance, if not for the horns which protrude on both sides of her head and her pointy ears.
Under Huraker's directive, she is sent to face off Lina Inverse at the capital city of Ti Toh where she ends up incinerating Saillune's fleet and part of the city by conjuring black fire before engaging in battle. As a mazoku beyond the range of the mazoku lords' influence, the strength that she could deploy relied primarily on the fragment of the Fang of the Dark Lord in Lina's possession. However, after being slashed by The Banisher and subsequently struck by Lina's Dragon Slave, Fullmace is promptly destroyed.