Monet

Monet was a scout and assistant for Caesar Clown and his underlings in the research facility on Punk Hazard. She had her original human arms and legs replaced with bird limbs, giving her an appearance resembling a harpy. She was, in truth, a member and officer of the Donquixote Pirates and was sent as a deep cover agent by Doflamingo. Due to her mission and actions, she could be regarded as the tertiary antagonist of the Punk Hazard Arc. She was also the older sister of Sugar.