Chiara: a force to be reckoned with.

Chiara is Stein's pushy, bossy, forceful and sometimes mean older sister. She is very aggressive with others and defensive of her younger brother. She has never met a problem she wouldn't rather stubbornly attack then calmly find a way around. While Chiara is very protective of her bother she does so by bossing him around and ordering him to stand up for himself.

Chiara has a particular enmity with Quinn Fairchild whom she is constantly butting heads with both metaphorically and otherwise.