Fumi is a teenager of above average height with an impressive physique, as noted by Lucy. He has short light hair styled in a buzz cut with three small spheres in the center. Under the spheres, two strands of hair stick out over his forehead, with one strand being longer than the other.
He wears a cashmere V-neck sweater with a striped collar. On the left of his sweater is a symbol of a large horseshoe framing an image of the dark silhouette of a rearing horse's head, similar to Johnny Joestar's hat. He also has a collared long sleeve shirt underneath his sweater, with buttons beside the collars. Joseph wears baggy shorts with a waist bag on each side and geta sandals. The Japanese spelling of his name is carved on his geta.
Fumi inherits the Star Birthmark on the back of his shoulder.
