ShortOfCatatonic
Jo is friendly and open. She is over all really sweet and likes to make friends and loves her family members.
Anna is loud mouthed and violent, she doesn't make many friends due to the fact that she would sooner attack and/or kill them. She hates her family and is one major psychopath.
Together, they are Joanna, two people in one body. One teenage girl, and a brain split in half. Jo is very aware of Anna, but has no control over what she does when she is the active persona.
Anna is out for blood, and Jo just wants to have her identity.
But, it's hard to do so when she has a raging psychopath just waiting to come out when she blacks out.