To a question asking why a combat android wears high heels, Yoko Taro
answered that the game is set 10,000 years in the future, so when he
tried to imagine what it would be like, he thought about how it was
10,000 years ago, and people back then probably would not have been able
to imagine what it would be like nowadays. That’s why he decided to
think freely and willfully about it. Since a lot of western games
feature space marines and that kind of concept, he let his ideas flow
freely and came up with a girl wearing heels in the future. Yet, the
biggest reason is simply that he just really likes girls.