1girl, back, black_background, closed_mouth, crescent_moon, fox_girl, fox_mask, fox_tail, indoors, japanese_clothes, kimono, long_hair, long_sleeves, looking_at_viewer, looking_back, mask, mawaru_(mawaru), moon, night, night_sky, original, outline, purple_hair, purple_kimono, red_eyes, red_outline, rikorisu_(mawaru), sky, smile, solo, tail