C.C (Transgender) (Stufe 5) mail warning

CC is a immortal young woman with special powers called the Geass. She is a stubborn and mysterious. She can give Geass powers to others, which she does to main protagonist Lelouch Lamperouge. She becomes an ally and protector of Lelouch, at times piloting a mech and leading the paramilitary group the Black Knights to do so. She later assists Lelouch at destroying other Geass users misusing their powers, including her former students, and supports the regime changes that follow.

I just start this game
I have no idea how its work

I look like a slave to Zero but a monster against his enemy
for Zero I will be