like most Underworld Government captins, Guren is a very mature, calm and somewhat reserved person, and only talkes when it's needed. However another intresting aspect of her personality is that she has utterly no regrets of anykind whatsoever, this is due to her Devil Fruit power called Kui Kui no Mi as she already used her ability to erase all the regrets she ever had in her entire life. As an Archeologist, Guren is very interested in history, and her main goal in life is to find out what happened in void century.