Magical Record Lyrical Nanoha Force

The story appears to be centered on the investigation of the Book of the Silver Cross, an ancient Belkan magical tome, and that tome's accompanying Dividers, magical weapons with currently unknown powers. Thoma Avenir, while travelling, discovers a girl named Lily Strosek trapped inside a strange research facility. When Thoma rescues Lily from her confinement, she grants him a new magical device that refers to itself as one of these Dividers. However, unbeknownst to them, a group of people known as the Huckebein family are also using these weapons to cause large amounts of chaos and destruction, leading to an investigation by the Time-Space Administration Bureau. Before long, Thoma and Lily find themselves caught up in the ambitions of the Huckebein family and the investigation of the Bureau.