Kizuna is an online virtual character completely constructed using software.[13] As the identities of producers in the background are not revealed, video animators, producers, video editors,[16] and players of games are unknown. Kizuna's YouTube channels are thought to be managed by an entire production crew,[19] and the choice to remain anonymous comes from the wish to keep the concept of a virtual idol intact. Though this has caused speculation regarding the operation crew and technology. Kizuna's videos are produced by Tokyo-based digital production company Activ8.