In the panel after this showing, someone said something to the effect of "this movie was an atonement by [the author/auto-biographer] for the death of his youngest sister." And I felt that while watching: atonement for the horrific effects of war and for the casual casting-out of anyone from society and for the compromise of your morals.
But I also felt the rising and overflowing happiness of caring for those you love and for the bond of childhood.
The image that twill remain with me: the lights of the fireflies rising and hovering and then fading into the lights of the firebombs dropping from warplanes.