Koan retains the same appearance in the anime as she did in the manga, albeit lacking her rose corsage on her neck. She wears a pink stripped suit with blue heels and a fluffy blue tutu. She has wavy dark blue hair that she lets fall down her back, but it is shaped in two points, purple highlights and she wears a blue gem above her forehead. Like all members of the Black Moon Clan, she has the Black Moon symbol on her forehead. After she is healed by Sailor Moon, she wears casual outfits and no longer has the Black Moon symbol on her forehead,