Esmeraude is the successor to Rubeus, deliberately passing up the chance to save his life from an exploding spaceship. She is completely infatuated with Prince Demand, who is obsessed with Sailor Moon. Consumed by her jealousy and greed, Esmeraude goes to Wiseman with the desire to have Demand and ruin Sailor Moon. He presents her with a magical tiara which, he claims, will make her the queen of Neo-Tokyo. Suspecting a catch, she accepts the gift and is instantly transformed into a 'queen'. Her power increases and she believes Demand will be all hers. She then becomes overwhelmed by the dark powers and changes into an evil dragon. She immediately proceeds to attack the Crystal Palace while the Sailor Senshi face her, unaware that the monster is Esmeraude. She attacks, but at the last moment, Sailor Moon fires an attack at the dragon, defeating it. Esmeraude briefly reappears as the queen she wanted to be, surrounded by a heavenly glow, but a dark void opens up underneath her. Unable to save herself, Esmeraude slips into the dark vortex, and vanishes into nothingness while reaching her hand outward. She whispers Demand's name after her disappearance.