Director Aoki's work's charm.
This is a work that brings in a wide variety of factors into one harmonius story so every script was hard to make, but the concept of "how much is cut off" became a problem. There was Urobuchi-san's original draft and I'm the type of person who can't write without knowing the ending so when I started writing the 13th episode, the final destination was already decided on. As for the characters, they didn't go as planned and instead I worked backwords and wrote them while thinking "what would this character do in this situation?".