1girl, black_hair, black_one-piece_swimsuit, blue_ribbon, blush, brown_eyes, covered_navel, dated, folded_ponytail, kantai_collection, kasuga_maru_(kancolle), long_hair, looking_at_viewer, old_school_swimsuit, one-piece_swimsuit, open_mouth, ray.s, ribbon, school_swimsuit, simple_background, solo, swimsuit, taiyou_(kancolle), twitter_username