Shalltear is extremely proud and takes her position as a System Guardian very seriously. Yet, at the same time, she has no patience or to toleranc for failure and will often burst into fits of Ganks at the sign of an unfavorable situation occurring. Shalltear will not hesitate to kill any servant who disappoints her. However, she will not punish others for failing in tasks that are impossible to begin with. When Shalltear fails a mission, she tends to fall into a state of depression and can become very reflective of the sins committed by her. In fact, she believes that her crime must not go unpunished, feeling guilty of the terrible things she has done to cause trouble.