Sumeragi is the tactical forecaster of the Celestial Being mothership Ptolemaios. As the most senior ranking officer on the ship, she is the de facto captain of the ship. She plans all the strategies the Gundam Meisters take part in and her strategic predictions are almost always accurate. Her real name is Leesa Kujo. In the beginning of the second season, Sumeragi is reluctant to rejoin the others until the encouragement from her companions helps her find the resolve to help them. At the end of the series, she remains with Celestial Being.