Jeff is the middle child of seven siblings and always felt out of place in his family of geniuses. His talents lay in more physical pursuits, like martial arts and sports, and while his parents tried to celebrate his accomplishments, Jeff has always felt like he disappointed them. When his Frenzy manifested at the age of 16, Jeff decided to join the Frenzy Guild as a crime fighter. Jeff is brave and slightly idealistic, always trying to do the right thing no matter what. He has a rather straightforward way of thinking that many view as simple, but he is by no means stupid. Generally optimistic and friendly, he seems an odd match for the taciturn Tao, but the two work together extremely well as friends and as a team.