1girl, banned_artist, black_hair, black_skirt, blush, brown_eyes, high-waist_skirt, holding, holding_mask, idolmaster, idolmaster_shiny_colors, long_hair, long_sleeves, looking_at_viewer, mask, mayuzumi_fuyuko, mouth_mask, open_mouth, pink_shirt, sake_dong, shirt, simple_background, skirt, solo, twitter_username, unworn_mask, white_background