Yo lo veo mas como romance, el harem apenas se da entre Shizuku y Stella, y en mi opinion un harem es mas grande, como de 4 o 5 mujeres you hombres segun el protagonista. Y algunos diran que Ayase esta en el harem, pero en ningun momento se le declaro o nada por el estilo asi que no lo creo. Aun asi con Ayase metida, seguiria siendo chico para ser un harem.
Espero que te haya servido :).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.