This section requires expansion
Abandoned by her family, Yoo lived heavily in the streets, stealing money from people at train stations before she was taken in by the Hand. With their help, she trained and developed, eventually gifted resources to become a physician at Metro-General Hospital.
Serving the Hand
Betraying Colleen Wing
Arriving at the hospital, Yoo was greeted by her former Sensei Colleen Wing asking for her assistance. She was asked if there was an antibiotics for a friend. She helped to an extent; directing Wing to the back of the hospital, she trapped her, sending her off with two other members of the Hand, Brian and Mary, whom bring her to Bakuto for failing to locate Iron Fist.
- Martial Artist: To be added
- Physician: To be added
- Colleen Wing - Sensei turned Enemy