Helba

ヘルバ

Helba is a hacker, and a highly professional one at that. She was believed to be working with Tsukasa due to his abilities. However, Helba states that she is not.
Helba is very secretive, and her contact with the main group is typically through Bear. Nevertheless, Helba is on the "good side" of the characters, informing Bear and company about what she knows and how the Net Slum area could be an advantage. After the group finds Aura, a large demon attacks in Net Slum, but Helba deletes the field and likely saves everyone's lives.