1girl, armpits, arms_behind_head, arms_up, breasts, clenched_teeth, detached_sleeves, forehead_protector, greyscale, hair_intakes, jintsuu_(kancolle), jintsuu_kai_ni_(kancolle), kaauchi, kantai_collection, large_breasts, long_hair, looking_at_viewer, monochrome, neckerchief, sailor_collar, school_uniform, serafuku, solo, sweat, teeth, upper_body