Sen is a young man of average height with dark brown, shaggy hair and black eyes with white irises, which look relatively thin and lazy-looking. He has a modest athletic build and a slight tan and often described as a good looking man. He is 5’8 and in Class 1-B. His quirk is ‘Gyrate’ allows him to rotate any part of his body at high speeds. Sen is serious, levelheaded, belligerent and mature,and often acts solemn but despite this, he can warm up and is truly in love with the user.