Mai-Otome

Season 1

Episode 21: When The White Princess Awakens "Shiroki Hime, Mezameru Toki" (白き姫、目覚めるとき)

Nagi discovers that the true heir to the throne might be Nina. Mashiro feels compassion for her exiled people and asks Aswad to take them in. Sergay forms a plan to capture Mashiro with the assistance of the Valkyrie unit.