Like all other Avatar members, Mary appears to be an ardent follower of Zeref. Aside from this, she is quite childish, calling out others on any lame puns that they make. She is also carefree, treating a serious matter such as a spy in their organization lightheartedly. She has a quick temper, causing her to make bad decisions such as attempting to engage Lucy in a melee when the latter is using the Taurus form of her Star Dress. But this quick temper is accompanied by an extremely small atte