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

(Source: Anime News Network)

Kurosaki hunted down and destroyed Mikimoto, the perpetrator who framed his father. Meanwhile, banker Houjou Kaneto, who delivered the final blow to Kurosaki's father, began to reign with great power in the financial world using money obtained by making full use of his high social status and strong connections.  Kurosaki is taking down Houjou's subordinate companies that commit fraud one by one, but will he be able to destroy him completely !? The final showdown to avenge his family, begins.

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)