Isuka's appearance is of that of a young male with light skin complexion. He possesses messy black hair as well as jet-black eyes. Isuka has a rather muscular body tone, despite the fact that his clothing makes him look pretty skinny. Isuka stands at the height of 5'7, a somewhat average height for a person. In terms of clothing, Isuka wears multiple sets of clothing in his life. His most common set includes a white long-sleeved shirt, which was open at the torso, dark blue pants with a blue cloth hanging from halfway up his stomach to his knees along with black arm guards that covered his forearms and stretched up to reach his upper biceps, and a black rope belt around his waist, tied in a bow, in which he carrys his sword.