Gurei Sazaki is a man that only cares for his needs and no one else's. To him people only exist because of the sixth sense, the ideal of someone noticing you is hat makes you alive no the will to fight. Hes called the "DNA Dynasty because he implants and takes DNA from others to mix with his own to become stronger and surpass every being on earth. Who could stop him from doing it? No one has so far.