Sayoko
A Mikuni’s lady-in-waiting who devotes to Mikuni with almost obsessive devotion. She is a former autopsist who is having difficulties in self-affirmation and is also a sadist with masochistic nature. How she came to Atlas Corporation is a mystery.
It is later known that she had a daughter who died from the same disease that Mikuni has. Shougo Kudo is also revealed to be her half-brother.