1girl, arms_behind_back, backless_dress, backless_outfit, black_dress, blush, closed_eyes, dress, from_behind, grey_background, kaf_(kamitsubaki_studio), kamitsubaki_studio, long_hair, long_sleeves, own_hands_together, ponytail, rice_(okome_no_naru_ki), sidelocks, simple_background, sketch, solo, virtual_youtuber