Shu Ogata is a demon slayer, mainly undertakes demon extermination work for the micro PMC "I&S". Originally employed by the major PMC "AAA Defender Co.", he is now independent and operates I&S with Kisara. He only takes on specific jobs and spends his earnings on exterminating demons, so he is poor in his personal life and always in need of money. Nothing much known about Shu's past as of now, but it said that Shu's parents and his little sister were killed by demons. As the sole survivor, he started to becoming a hot topic on news, which made her life at an edge. But thanks to Akino Yuugiri, she covers all the incident. He then adopted by Miles Morgan.