A top-grade Color Fixer known as the Blue Reverberation, and a "certified lunatic" according to Roland. He's not wrong, considering Argalia's extreme cruelty and general unsettlingness. he is responsible for crippling powerful Syndicates like the Five Fingers and is even capable of threatening the Wings. Later, it's revealed that Angelica was married to Roland, making Argalia Roland's brother in law. The three were formerly Outskirts-born children who were experimented upon by a Wing.