Age: Unknown
Race: Modified Human
Affiliation: Union
Occupation: Member of Cerberus
First Appearance: Chapter 211
Yuizi was a modified human who served the Union as a member of Cerberus, the personal guard and strongest military force of the Union's 12th Elder. Yuizi is the only female member of Cerberus, the elite bodyguards of the 12th Elder. Her participation during the visit to South Korea has been remarkably short, as she had no chance to engage in battle like her teammates.
Yuizi seems very quiet, as compared to the other members of Cerberus. She is serious like Rodin, and looks down upon the antics of Ked and Lutai, saying that they will probably "cause an unnecessary ruckus" if they are left to their own devices.
As a member of Cerberus, Yuizi can be assumed to be strong. She even considered Yuriy to be no match for her, which Yuriy accepted.
Source: Noblesse wik
Vova
