Oz have a certain particularity... In fact, he have two distinct souls wo live in him. Oz , the dominant soul, and Jack , the true owner of the body. Oz is just someting wo apear, latter, in the body of Jack, when he his close to dead. Now, everyone think that it's only Oz wo live in this body, but it's not the true.. Oz Oz is an optimistic and energetic boy. He has one capacity of adaptation which impresses it more of one. Very friendly and sociable, he hides however a more serious and quiet facet. He is very intelligent and his guile has him to save more than once. Jack His personality is also very similar of that of the Oz, he makes things for his own rhythm, he is noisy and joyful. But he is also manipulator, he makes everything in his own interest. He possesses a " empty " and disturbing aura. He can destroy everything around of him if it is to survive and have for what he really wishes.