Misaki Senomiya

Misaki Senomiya (瀬乃宮 みさ希) is Akiho's older sister and the current spokeswoman for EXOSKELETON, a robotics company. During the SS Anemone Incident, she discovered Ko Kimijima's plans of genocide and killed him, but ever since has been brainwashed by his cyber ghost. Her age is 27 by the way but date of birth is not given on the wiki.