.hack//Quantum is an animated three episode OVA series for the .hack franchise, produced by Kinema Citrus and presented by Bandai Visual. It was initially scheduled to be released in November 2010, but it was later changed. The first episode was released on January 28, 2011 with the following two episodes to be released in one month intervals. Excluding the all-CGI animation movie .hack//G.U. Trilogy, it is the first animated OVA project not to be produced by Bee Train. It is not related to a planned CGI movie tie-in to the newest game in the .hack series, .hack//Link. Masaki Tachibana of Tokyo Magnitude 8.0 directed the OVA project and .hack// writer Tatsuya Hamazaki scripted. Kinema Citrus animated the series and Kow Otani composed the music. Yuuka Nanri performed the theme song for the