Sou Hiyori is a 20-22 year old male who jumps various different jobs (or so he says). Sou is a complex character with multiple personalities. To a majority of the group, Sou behaves as incredibly helpful, generous and knowledgeable figure. Although, when speaking to Sara alone, Sou reveals a more threatening side as he stresses his disdain and distrust for her. He frequently uses his own intelligence in manipulation to get other participants to do his bidding as well, and often will derail discussions for seemingly his own amusement.