Solence

A big nosed Dokeshi employed by the Fear Factory. His ability enables him to produce different kinds of gasses within his body and his condition is that he needs to take deep breaths. Him and his squad were sent to capture Yohei so as to retrieve a vital piece of the Fear Robot, but ends up failing when Shotaro intervenes, resulting in him getting fired. He reappears later on, taking a group of people hostage (with Mana being among them) in order to draw out Yohei and Shotaro, but the duo manages to beat him again to which he's then arrested and sent off to prison. (Source: Wikipedia)