 In an interview with Ultra Jump Egg , Urobuchi gave insight into his writing philosophy , stating that he believed the overarching plot of a story was more important than the characters within it . He indicated that he would first determine the actions and the ultimate fate of a character before even assigning it a name , and contrasted this with other writing methods which first focused on developing the characters and then creating a storyline for them to follow . He again defended his decision to have Mami die , claiming that this could actually have the converse effect of making her character even more memorable , saying , " I think there are quite many characters who became immortal exactly because they died , like Caesar Zeppeli in JoJo 's Bizarre Adventure or Raoh in Fist of the North Star . Precisely because of the way they died , they were able to live forever . " 
