1girl, arm_support, ass, bent_over, black_wings, blue_archive, blurry, blush, choker, classroom, depth_of_field, desk, feathered_wings, from_behind, hair_between_eyes, hair_ribbon, halo, hat, head_wings, indoors, koharu_(blue_archive), long_hair, long_sleeves, looking_at_viewer, looking_back, nanochie, panties, pantyshot, pink_eyes, pink_hair, pleated_skirt, ribbon, school_desk, school_hat, school_uniform, serafuku, sidelocks, skirt, solo, tearing_up, twintails, underwear, white_panties, window, wings