Unlike his younger brother Isami, Katsumi is afraid of the tremendous power he has received since becoming and Ultraman. These two brothers will both have conflicting opinions about their newfound abilities. Their younger sister Asahi though tries her best to cheer them up and make them feel happy again. When all of a sudden another kaiju appears rampaging through the city, Isami gets buried beneath the rubble of the attack, and cannot move!
