Dianamon is a God Man Digimon whose name and design are derived from Diana, the Roman goddess of the moon. It is one of the Olympos XII, presides over water and ice, and is able to fight even when the surroundings are below absolute zero. Just as the moon has two sides, light and dark, its personality is of a two-sided nature, and its beauty conceals a terrifying power. It wears the "Goodnight Sisters" on both of its legs. She reawakened her power when Ace was about to be struck by the Moon Queen. She was then sent into a deep sleep along with the rest of the Olympos XII in the final battle against the titans. But thanks to Ace and Hope's efforts of defeating the Robot Masters, she and Corona were able to return to their partner's and friends sides.