1girl, ass, back, back_focus, blue_hair, from_behind, head_out_of_frame, hololive, hoshimachi_suisei, hoshimachi_suisei_(stellar_into_the_galaxy), juliet_sleeves, kuon_bb, long_sleeves, medium_hair, official_alternate_costume, puffy_sleeves, shorts, sky, solo, star_(sky), starry_sky, tassel, thigh_strap, virtual_youtuber