Kurumi

Age: ???
Birthday: December 16
Blood Type: AB

Formerly code-named "Walnut" (which is the English for her name Kurumi), Kurumi is a highly skilled hacker who is running away after her residence was destroyed by another hacker "Robota's" tracking. After Walnut is "killed", she starts living in LycoReco for protection in exchange of support with LycoReco's missions.

(Source: Wikipedia)