2girls, arms_behind_head, bb_(baalbuddy), bra_visible_through_clothes, cowboy_shot, greyscale, hime_cut, long_hair, looking_at_viewer, midriff, monochrome, multiple_girls, pipimi, pleated_skirt, poptepipic, popuko, school_uniform, serafuku, shirt_overhang, simple_background, skirt