Walmano
hmm.... I know the otsutsuki is identical to a horn or something like a bone protruding from its head. because suzu is in the shinobi world, it is better for her to disguise his otsutsuki physical characteristics, especially if there is Danzo, Orochimaru and Black Zetsu. You must, otherwise you will be suspected especially Black Zetsu who knows Kaguya quite well.