1girl blue_neckerchief blue_sailor_collar brown_hair closed_mouth collarbone commentary_request hyouka ibara_mayaka kamiyama_high_school_uniform_(hyouka) light_blush long_sleeves looking_at_viewer mizuhara_tatsuya neckerchief pout sailor_collar school_uniform serafuku shirt short_hair simple_background solo sweat upper_body violet_eyes white_background white_shirt