Sumeragi Lee Noriega, whose real name is Leesa Kujo, serves as the tactical forecaster and de facto commander of the Celestial Being mothership Ptolemaios and its successor, the Ptolemaios 2, during the events of Mobile Suit Gundam 00 Second Season. Though she holds no official captain's rank, she is the highest-ranking officer on board and is responsible for drafting all mission plans and directing the Gundam Meisters in battle. Her strategic predictions are almost always accurate, making her an invaluable asset to the organization. Before joining Celestial Being, she studied tactical strategy in college alongside Billy Katagiri under Professor Ralph Aifman, driven by a personal ambition to reduce soldier casualties. After the devastating battle at the end of the first season, Sumeragi was consumed by guilt over the lives lost due to her plans and left Celestial Being, living in seclusion. She returns in the second season only after being called back by Setsuna F. Seiei, initially reluctant but eventually regaining her resolve with encouragement from her comrades. Her personality is marked by a sharp, analytical mind and a confident demeanor, though she also copes with heavy drinking, often seen with a liquor flask even during operations. This habit is a notable contrast to her otherwise professional composure. In the second season, her tactical style becomes bolder and more aggressive, particularly in contrast to the more cautious approach of her rival, Brigadier General Kati Mannequin of the Earth Federation Forces. Sumeragi maintains key relationships with her crew, including the Gundam Meisters, and shares a complex history with Billy Katagiri, who later becomes an adversary. Over the course of the series, she overcomes her past trauma, fully commits to Celestial Being's mission again, and remains with the organization through the end of the second season. Her most notable ability is her exceptional skill in strategic forecasting and real-time battle coordination, allowing her to adapt quickly to changing situations and guide her team through the most perilous conflicts.