1girl ahoge armpits bangs bare_arms bare_legs bare_shoulders barefoot blonde_hair brown_eyes cameltoe collarbone commentary covered_nipples flat_chest foot_out_of_frame hair_between_eyes highres leg_up legs loli long_hair looking_at_viewer matatabi_(2ccp) name_tag onii-chan_wa_oshimai! open_mouth oyama_mahiro school_swimsuit simple_background solo swimsuit white_background