櫻井孝宏
is a 2008 Japanese CGI anime original video animation (OVA) directed by Hiroshi Matsuyama based on CyberConnect2's games ".hack//G.U.". It was released on January 25, 2008 on DVD and Blu-ray format. The OVA features the voice talents of Takahiro Sakurai, Ayako Kawasumi, Hiroki Touchi and Kaori Nazuka. Its story focuses on an online gamer known as Haseo who seeks to find the player killer Tri-Edge who sent his friend Shino on a coma after her character was killed in the game.