Black Blood Brothers (Japanese: ブラック·ブラッド·ブラザーズ, Hepburn: Burakku Buraddo Burazāzu), also known as BBB (ブ·ブ·ブ, BuBuBu), is a light novel series written by Kōhei Azano and illustrated by Yuuya Kusaka. In 2006, Studio Live and Group TAC produced an anime based on the series. It is directed by Hiroaki Yoshikawa. It was licensed for North American release by Funimation Entertainment, with the first DVD being released in February 2008. During a war called the Hong Kong Crusade, an Old Blood vampire, Jiro Mochizuki, a.k.a. the Silver Blade (Gintō), fought and defeated the Kowloon king and most of the Kowloon Children. Ten years later, Jiro heads to Hong Kong with his younger brother, Kotaro Mochizuki, in hopes of reaching The Special Zone, a thriving secret city where Vampires live-(which is separate from the human civilized parts of the city). They soon realize that a plan to infiltrate the Special Zone is being hatched by the Kowloon Children survivors. As they travel to The Special Zone, Jiro encounters enemies from the past and new threats that may endanger the safety of the Special Zone including the citizens. Kotaro's abduction, by one of the Kowloon Children, thrusts him even further into the battle. Along the way, he meets a human girl named Mimiko.