The Black Swindler

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, Kurosaki sets out to avenge them by becoming a black swindler.

The 18- and 19-year-olds who have just become "new adults" are getting trapped in scam contracts.
How will Kurosaki, the most dangerous con-artist in history who specializes in conning other scammers, fight back this time...!

(Source: Big Spirits Comics, translated)