Sendo is a tall, thin and well-built young man with a piercing in the tragus, short reddish-pink hair that is combed to the left, there are small undercuts under them, and red eyes that are mostly squinted with long eyelashes. He is mostly seen with a calm or negative expression on his face. Sendo tends to be arrogant and confident in his skills. He never hesitates to respond to people who annoy him, which makes him seem like an assertive person.