Fon is I-Pin's master who is the holder of the Red pacifier of the Storm. He bears a striking resemblance to Hibari in his grown form, but he is peace-loving, polite, and kind to others, contrasts with Hibari's violent and fierce attitude. He is shown to be one of the wisest and the strongest of the Arcobaleno and also always seems to know what is going on. He is a martial arts master, and a champion the top martial arts. He masters at least 104 martial arts with his main and strongest art is Exploding Gale Fist that is said to be invincible.