1girl bangs black_headwear black_wings blue_archive blush breasts closed_mouth feathered_wings hair_between_eyes halo hat head_wings highres koharu_(blue_archive) long_hair long_sleeves maza_kisuke mini_wings miniskirt navel off_shoulder pink_hair pleated_skirt purple_skirt sailor_collar school_uniform serafuku simple_background skirt small_breasts solo twintails white_background white_sailor_collar wings