1girl arm_up arms_behind_head bangs black_footwear black_shirt blue_archive blue_buruma blue_eyes bottle breasts buruma commentary_request drone full_body gym_uniform halo hidulume highres id_card lanyard long_hair looking_at_viewer mechanical_halo official_alternate_costume open_mouth purple_eyes purple_hair shirt smile solo standing standing_on_one_leg water_bottle yuuka_(blue_archive) yuuka_(gym_uniform)_(blue_archive)