Age: 19
Height: 640 pixels
Weight: 2MB
Blood type: AB
Song: Artificial Enemy, Headphone Actor, Ene's Cyber Journey, Yuukei Yesterday
Eye ability: Opening Eyes
A strange program taking the shape of a young girl which has taken up residence inside Shintarou's computer. She calls him "Master," and yet adores bothering him.

First appeared in "Artifical Enemy." A naive cyber girl who lives in Shintarou's computer. She can possibly invade anything that uses electricity and gives her all in doing things that Shintarou hates.

Was once a human by the name of Takane, but lost her body after being poisoned. As a human she was a classmate with Haruka Kokonose. She entered the Heat Haze, was possessed by the Opening Eyes snake, and uses it to reincarnate herself as a program.
Only in the novel and anime timelines, she is brought to her original body by Kano. After re-entering it, she is able to move from her original body to electronic devices and vice versa. In the final novel, she is killed by the Snake of Clearing Eyes, but her soul still exists in the Heat Haze with the other deceased characters.
(Source: Vocaloid Wiki)