1girl, d, aqua_eyes, black_hair, black_sports_bra, blue_background, dodome-iro_mayonnaise, hololive, looking_at_viewer, navel, oozora_subaru, oozora_subaru_(1st_costume), open_mouth, shirt, short_hair, simple_background, smile, solo, sports_bra, stomach, striped, striped_shirt, sweat, tied_shirt, vertical-striped_shirt, vertical_stripes, virtual_youtuber, wiping_sweat, wristband