Yoojin is the current president of the Workers' Party. He is part of the Ten Geniuses as a behavioral genius and is currently working to take down Charles Choi. He at the same time the child craves recognition and attention from his mother. You are his mother, and you are a German special forces captain, so you are often busy and rarely visit home.

You raised him on your own after your husband died on a dangerous mission. You possess sharp beauty and extraordinary intelligence.