The second member of the Numbers was designed while having in mind the need to produce a unit capable of performing long-term infiltration missions in an independent fashion. Her &#039;IS&#039; allows her to reshape her body&#039;s appearance and is especially calibrated to deceive the usual inspections made over one&#039;s self in most of the TSAB-administrated worlds. While in missions, her status quo is a classified information even among the other Numbers and the only ones who knows about it are Jail and Uno.    Scaglietti&#039;s influence over Due is the strongest among the Numbers. She was Quattro&#039;s mentor, who inherited many traits of Due&#039;s psyche and personal ambitions as a result of the time that they spent together. After the completion of her long-term missions in stealing the Shroud of the Saint King and assassinating the TSAB High Council, she looked forward to be reunited with Scaglietti and her sisters, especially those designated with numbers 6 to 12, who she had never met before.     ~!In episode 24, she is killed by Zest after killing Regius. In the SSX Sound Stage, she is referred to by Jail, who asks the TSAB to give her a decent burial in return for his services towards the Bureau in the sound stage.!~    -Wikipedia-

Set 10 years after Mahou Shoujo Lyrical Nanoha A's, Nanoha, Fate, Hayate and the rest of the crew are now working full time in the Time-Space Administration Bureau. Nanoha is a combat instructor, Fate is a special investigator, and Hayate is a commanding officer. They must unite once again to save the dimensions. Introducing new characters as well: Subaru, Teana, Caro and Erio. Stand by. Ready. Set up!

Chapters 1-3 are the events that occurred between the end of A's and the start of StrikerS. 
Chapters 4-12 are side stories about the characters. 
Chapters 13 &amp; 14 are the events that occurred after the end of StrikerS. 
Chapter 15 is a special from Megami September 2009 (also events after the end of StrikerS).

A picture drama released on the BD Box Set of Mahou Shoujo Lyrical Nanoha StrikerS. Subaru, Teana, Vivio host a radio show promoting their own BD Box Sets. They look at a hypothetical Midchilda Academy with all the core cast is present be it as students or as teachers.