Masato was born in the Iwate Prefecture. Masato's father was the President of an arms manufacturing plant, and his family is quite wealthy. Going against his father's wishes Masato entered the academy (6th team trainee). He is the youngest member of the Jyusenki Tai. An active lad, though somewhat immature, Masato's emotional strength makes up for his lack in combat experience. Later Masato's father is killed in an engagement involving a Muge survivor, in "God Bless Dancouga". Masato also is the best friend of Laura Sullivan, and her dog Becky. His blood type is B.
