Also known as: 管理局の白い悪魔, 白い悪魔
When Takamachi Nanoha from Lyrical Nanoha shows no mercy. Became a nickname of hers starting in Mahou Shoujo Lyrical Nanoha A'S, given the title due to the Rx-78-2 Gundam whose color scheme she references having the same title, but was first officially acknowledged in Mahou Shoujo Lyrical Nanoha StrikerS.