An androgynous, mysterious individual who is named after a main villain from the original series. Berg has the power to assume anyone's identity by kissing them, which is used to frame people for various crimes. Berg also displays powers of levitation and teleportation. Both Paiman and O.D seem to know about Berg, who also possesses a NOTE, golden in color with a unique symbol. According to them, Berg Katse is a malicious being whose purpose is to destroy all life in the universe by turning the individuals of the planets it attacks against each other, leading them to mutually annihilate themselves.