Hayato is a cool headed yet manipulative young man with a calculative mind. He is willing to go to extremes in order to accomplish what needed to be done including killing Dr. Saotome after finding out he was infected with Invaders and getting rid of any obstacles to those plans such as Hayato's former teammate Ryoma Nagare. Beneath this ruthless persona is a person dedicated to stopping the Invaders and making amends for his past sins.

