Kurosagi (クロサギ, lit. "The Black Swindler") is a Japanese manga written by Takeshi Natsuhara and illustrated by Kuromaru. It won the 2008 Shogakukan Manga Award for seinen/general manga along with Tetsuji Sekiya's Bambino!.
The series was adapted as an 11-episode TV drama that was aired on TBS from 14 April 2006 to 23 June 2006. On March 8, 2008, Kurosagi with Tomohisa Yamashita starring as the Black Swindler once again, was released.
White swindlers (shirosagi) are those that cheat people to take their money, red swindlers (akasagi) are those that swindle the opposite sex, and black swindlers (kurosagi) are those that cheat the white and red swindlers. After his family is swindled by white swindlers, Kurosagi sets out to avenge them by becoming a black swindler.