He has a rather special power and in some ways is supposed to be able to rival Chujo. The basis for his power, however is not offensive. Kenji is immortal. He can not die. His power is his curse. His friends and those he cares for die. He is forced to keep himself separate and can only serve as a sober lesson for people like Daisaku who have to come to terms with the results of this war they are engaged in. He has a special place in his heart for Ginrei.

In Tetsujin 28, Kenji is a former intelligence officer of the Japanese army. He is rather skilled with knives, but, due to his anti-war sentiments, he never uses guns. Kenji initially bears a grudge against Tetsujin because he holds the robot responsible for the death of his brother.