She is a gentle giantess. She came to earth after hearing how much less advanced our society was than hers and, feeling sorry for us, she decided to aid humanity's progress in any way she could. She decided to find an apprentice to support her on her mission. She wouldn't intentionally harm a human without a very good reason (ie: self defense), and she would never kill anyone on purpose, no matter what the circumstances. She has a kind heart, and cares deeply for all those around her.