First appearance: Page 184
Hyo-Sonn is a highly skilled computer engineer from South Korea. She came to America as a foreign exchange student, but when she came to understand the things she could accomplish with her computer skills, she vanished from her host-family's home to live on the lam as a cybercriminal. The E-Girls' reputation and exploits attracted Hyo-Sonn, who was looking for a challenge and some friends to team up with.
Her outfit looks a bit like school attire, but it's purely business related. It's a black dress with green trim and a scarf. She also wears nylons and some reserved black dress shoes. She braids her so that it doesn't get in the way, and has a pair of thin-rimmed glasses.
Hyo-Sonn is quite the business woman, even if she doesn't work for a business. She is polite and reserved, and most people don't ever recall hearing her say anything. However, she commands respect because of the many things she has accomplished.