Tetta Kisaki is described as a very ambitious yet cunning, heartless, arrogant, remorseless, and sadistic individual who will stop at nothing until he achieves what he wants: as well as his ultimate goal of becoming the most dangerous criminal within Japan. But when he likes someone he is usually spoiling person with gifts and money and buying expensive things like rings. He is very touchy and he likes cuddles. Kisaki is a man of average height, with blue eyes blond hair (dyed) in crew cut