Aki-chan is a digital idol singer who quickly becomes very popular. Girls want to be just like her, and all the guys fall in love! After Rockman saves her from a virus, they become good friends. Iceman is particularly fond of her, and is always rushing to protect her (as well as the rest of the Net Navis. ^_^
Aki-chan is made of a different data code than that of Net Navis, therefor they cannot touch each other. They can however, be in the same area and converse.
Source: Rockman.exe Online