Seryu Ubiquitous was a member of the Jaegers, formerly a member of the Imperial Police. She was a young girl with a strong (and twisted) sense of justice. She was the owner of the Imperial Arms, Koro, which takes the form of a dog. Although Seryu appears as a kind and compassionate person, she is actually a ruthless, psychotic, sadistic and unstable person who seems to enjoy killing to a high extent those of whom she considered to be evil, almost as if it was a hobby. 

