1girl bag bangs black_hair blue_eyes blush box braid buttons cardigan chocolate cloud gift hair_between_eyes hair_ornament hairclip handbag hands_up highres holding holding_box holding_gift kuroki_(ma-na-tu) long_hair long_sleeves looking_at_viewer midriff_peek open_cardigan open_clothes open_mouth original outdoors pink_ribbon pleated_skirt purple_skirt ribbon scarf school_uniform skirt sky smile solo sweater valentine yellow_ribbon