**Occupation:** Policeman **Affiliation:** Member of Materials Compiling Group No.3. While Yatsu may greet an adversary with a toothy smirk and cool confidence, he is not above voicing a complaint or two when aggrieved and reacting to an obnoxious adversary with a naked grimace. Like the rest of Comps-3 he is staunchly loyal to Iwanome, to whom he also will not hesitate in pointing out unpleasant truths.