1girl absurdres bangs black_bow black_hair blush bow brown_eyes commentary covered_mouth dress_shirt envelope fingernails green_sailor_collar hair_between_eyes hair_bow heart highres holding holding_envelope indoors long_hair long_sleeves love_letter nose_blush original pentagon_(railgun_ky1206) sailor_collar school_uniform serafuku shirt shoe_locker solo translated twintails upper_body very_long_hair white_bow white_shirt