Hacka Doll

Hacka Doll(ハッカドール) are a group of Japanese Virtual Youtubers, also navigators from the Hacka Doll news app and characters from the anime series of the same name.

The channel mainly features Hacka Doll #1 (female, blonde hair) but there is also a video with #3 (male, blue hair).

Introduction Video
Hacka Doll #1's introduction.