Mio calls herself a magician. It is because of her computer and hacking skills she can do things that look like magic in that computer controlled society. Mio is very cheerful and sociable character and drags Hazuki from her controlled cage like home to meet real life friends.
She tries to protect Yuko and her friends but fails in the end in Yuko’s case. She almost got killed but survives in the end to save the day with Hazuki and the others.