Gilgamesh is an arrogant and tsundere woman who presents herself as the 'King of all heroes'. She has striking red eyes and blonde hair. In her daily life, she wears casual clothes and black high heels, but for combat, she dons a full suit of golden armor. Despite her haughty demeanor, she is easily flustered and prone to blushing, harboring a small crush on Arthur. Her combat abilities are immense, capable of unleashing the Gate of Babylon and Enuma Elish.