2girls, arms_behind_back, blank_eyes, breasts, cleavage, hair_ornament, hairclip, hat, kantai_collection, kojima_takeshi, kuroshio_(kancolle), meme_attire, monochrome, multiple_girls, necktie, open_mouth, ryuujou_(kancolle), school_uniform, shaded_face, shirt, short_hair, short_sleeves, sketch, small_breasts, t-shirt, twintails, vest, what