not distort the initial character. According to Hiroe, at the beginning of the project there were only "bad men," and after discussing it with the editorial staff, they decided to introduce a character who would share the same point of view as the readers, so he added Rock as a businessman to the story. Hiroe commented that there was no particular reason why he is Japanese. Hiroe commented that after Rock was added to the story, "he came to life and started to build his own interesting character." Sunao Katabuchi, director of the anime adaptation, said that Rock is the character that he empathized more with, commenting that while "[w]e live our daily lives as if we are closed inside of a box-like world," Rock "breaks out of such a box," adding that breaking out is not the end for him; "[he senses that] there may yet another box that maybe be broken out of," and he is "pointed in the right direction. The fight is not with the container which encloses the world, but with one's self." Hiroe stated that he did not dislike "cute girls" or moe characters, but that the inclusion of these characters should depend on whether there is a relevancy to use them in what he is creating. He stated that when creating the Colombian maid and former FARC guerrilla, Roberta, her design was slightly influenced from the growing interest in maids at the time, but that he dressed her as such because he imagined that an affluent family in South America "would dress maids that way," adding that her design was not a take on "moe culture" as much as it made contextual sense. Katabuchi commented that the anime staff referred to the scene where Roberta's umbrella opens up and spins around the body and fires as "The Evil Mary Poppins", adding that Hiroe also had the idea to use the character as a kind of "Death Poppins." Hiroe commented that at the beginning, Roberta had "a very set character background," but he wanted to see if he could go past that and break it down to see what he could do with it, which is why the character reappeared in the story. Originally, he had not planned the arc of the Hansel and Gretel twins to be more dark and serious than the rest of the series. He commented that at first he