Yakumo has red hair tied up in a pony tail with bangs in front. He has lime green eyes with slits. Additionally, he has a broad build and stands fairly tall. Inside the Headquarters, he can be seen wearing a a dark brown mesh shirt and brown fingerless gloves. His pants have a camouflage-pattern and he wears a little bag at the left thigh, as well as dark boots. When chosen on a mission, he has a dark brown Blood Veil draped over his shoulders, with the first few buttons at the collar close.