Isamu grew up with his brother Michi. The two were orphaned as children and had to fend for themselves. Michi had to stteal from the people of Yōkōgakure, While he was not stealing he trained his brother in the art of kenjutsu. Until his brother was caught by Isamu Youta, The two brothers were given a home to live in and wer both sent to the academy. When his brother left for Kumogakure he trained under his brothers lover Hara Hōzuki and was given Junko. Now he wishes to become one of the Seven Ninja Swordsmen of the Mist.
Isamu is a young man with tan skin, he wares the typical of Kirigakure and mimetic wrist-warmers extending up to his elbows, with matching leg-warmers. He has snow white hair and a light blue hood.
Isamu is a shy individual and seems to lack confidence in his abilities. He also admires Hara Hōzuki greatly, as seen when he said that he would protect her while his brother was gone.
Despie not having confide he has many skills. One of his most known moves is his Hiramekarei Unleashing making it into various different weapons.