1girl, ass, bag, black_bag, black_headwear, black_wings, blue_archive, choker, collarbone, feathered_wings, from_side, hair_between_eyes, halo, hat, head_wings, hugging_own_legs, kneehighs, knees_up, koharu_(blue_archive), long_hair, long_sleeves, looking_at_viewer, looking_to_the_side, loose_socks, nanana_(chicken_union), pink_eyes, pink_hair, pleated_skirt, school_bag, school_hat, school_uniform, serafuku, sidelocks, sitting, skirt, socks, solo, twintails, white_socks, window, wings