Seryu Ubiquitous

Bio
Seryuu is a member of the Jaegers, formerly of the Imperial Guard. She is a young girl with a strong sense of justice, even going as far as to allow Dr. Stylish to implant weapons into her body to punish those she considers evil. She is often seen with her pet dog "Koro", which is actually a Biological Teigu. She briefly meets Tatsumi, and is oblivious to the fact that he is a member of Night Raid. Later, she encounters Schere and Mein and a confrontation occurs. After having her arms cut off by Schere, she reveals that guns have been implanted into each of them, and proceeds to shoot Schere, wounding her fatally. As a result, both Mein and Tatsumi have an intense desire to kill Seryuu.

Equipment & Skills
Seryuu possesses a biological teigu called "Hekatonkheires" which she named "Koro". It is capable of growing to incredible size on command, and extending it's mouth open to reveal many rows of razor sharp fangs. It also seems to be very durable, being able to regenerate even after being blasted with Mein's "Pumpkin".

Trivia

 * "Hekatonkheires" is Greek for "One hundred arms" (thank you to anonymous user for this tip!)