Kona Furugoori

Age: 16
Height: 155 cm
Weight: 49 kg
Birth Date: 2002/6/17
Constellation: Gemini
Blood Type: B

Her real name is Furugoori Kona. Creator of Kill-Ballad and daughter of director of Gunvarrel.
Her most notable sayings are "What kind of eroge is that?" and "Duhuhu~"

It is revealed that Gunvarrel was a propaganda tool being used to brainwash the masses, and when the staff of Gunvarrel discovered this they were killed by the Committee of 300. All that Frau knows is that her mother went missing and was last seen in Tanegashima, and comes to the island in search of clues.

Later on she developed feelings for Kaito.
(Source: Wikipedia)