Chelsea

A seasoned assassin working for the Revolutionary Army, having successfully carried out countless missions. While she is somewhat aloof and carefree when not on the job, she is also extremely objective and is often quite blunt when voicing her opinions. Her Teigu, 'Gaea Foundation', is a cosmetics box that allows her to instantly change her appearance and build at will.

Later in the series:

she develops a crush on Tatsumi.