Sharu

A virus with the motif of social networking sites. She wants to let others know how others feel. This includes telling a boss how much a worker hates him and telling a girl how much a guy loves her.

Yuuichi names her after the cial (シャル) in social (ソーシャル) because she is a virus who primarily deals with SNS, social networking services (ソーシャル・ネットワーキング・サービス).