Cassidey's left wrist.
It reads "rei" (隷) and does not mean anything by itself.
It is usually used in such words as "奴隷" and "隷属."
"dorei "(奴隷) means slave. "隷属" (reizoku) means being slaved or being dependent against one's will.
Maybe she wants to claim she is a bitch. Funny.
