Angelique Limoges and Rosalia de Catargena have been selected as contenders for the title of Queen of the cosmos through the Queen Examination. As a unique part of this selection process, each girl has been tasked with nurturing and developing a continent on a planet to create a prosperous society and ecosystem. To help them achieve this goal, they are assigned a team of nine Guardians who possess powers over elements such as fire, wind, and water.