1girl, arimoto_wataru, arm_support, breasts, detached_collar, dress, flower, frilled_dress, frills, hair_flower, hair_ornament, half-closed_eyes, holding, holding_microphone, hololive, hololive_english, lace_collar, long_hair, looking_at_viewer, medium_breasts, microphone, mori_calliope, mori_calliope_(3rd_costume), music, official_alternate_costume, official_alternate_hairstyle, open_mouth, pink_eyes, pink_hair, red_dress, red_flower, red_rose, rose, shawl, singing, smirk, solo, strapless, strapless_dress, virtual_youtuber