1girl 2boys anchor_hair_ornament arms_up banao_(vanaokun) binoculars blush braid brown_hair classicaloid collarbone cowboy_shot dress flag frilled_thigh_strap gasp hair_ornament hat holding holding_binoculars holding_flag ludwig_van_beethoven_(classicaloid) multiple_boys otowa_kanae paper_airplane pink_hair red_eyes sailor sailor_hat treble_clef white_dress wolfgang_amadeus_mozart_(classicaloid) yellow_background