1girl, black_choker, black_nightgown, breasts, choker, cleavage, hololive, hololive_english, large_breasts, long_hair, looking_at_viewer, mori_calliope, mori_calliope_(6th_costume), nightgown, official_alternate_costume, official_alternate_hairstyle, olga_korezky, pink_hair, red_eyes, sleep_mask, sleepwear, solo, tongue, tongue_out, underbust, virtual_youtuber