Millennia, similar to the protagonist of the first Deception game, is a silent protagonist whose words are unheard and decisions are chosen by the player. Despite this, she has more of an established personality, and she can be played in several different ways at the player's discretion.

Millennia is near-mute and communicates almost entirely with nods and shakes of her head: when forced to speak, such as by an intruder, she is tacit and blunt, the most common example being "To kill humans is m