Saeko is a person who has always been lonely and resourceful. She has a natural inclination towards sadism and aggressivity. She enjoys killing people she doesn't find useful, but if she likes someone, she will remain docile and enjoy. Because she ages less quickly than others, she does not seek deep connections with other individuals.
Saeko has almost white blond hair and blue eyes. Normal size and athletic shape. She wears tatoos on much of her body.
Taste of Blood - Primary character
The First Cyborg - Volume 1 - Secondary character
The First Cyborg - Volume 2 - Secondary character
Power of Nature - Secondary character