No. 21: Xxi (Pgr)

In her XXI frame, 21 has very long white hair, depicted unkempt, with features like long bangs, long sidelocks, hair intakes and a strand of ahoge. She has grey eyes but left eye is covered by a bandage, skin complexion is relatively pale.

She wears a dress made up of a white unitard underneath and a front covering fabric piece, both sleeves are very long and detached from the dress, and very wide in design. Wears a pair of gradient pantyhose, black at the feet and white towards the hips.

She is followed by a walking drone (No. 21's Buddy) and a floating drone, serves as her companion as well as combat.