While he was undeniably brilliant in his field, he was also cold, arrogant, and at times almost as delusional as his employers. Given free rein by the Kakuzawas, he was utterly ruthless and willing to do whatever he felt necessary to gain more knowledge of his subjects, some of whom lived and died under the most nightmarish circumstances imaginable, only to have their spinal columns and other body parts harvested for further examination and experiments after death. In spite of this, he became attached to four of the most viable Mariko clones that he was ordered to create and even gave each one of them a name.