Liar Game (tv-series, 2007)

Adapted from the manga of the same name, Liar Game centers around Nao Kanzaki, a student who was blackmailed into joining a "Liar Game" and ended up losing 100 million yen. In order to repay the debt, she enlists the help of Shinichi Akiyama, a genius swindler who was only recently released from jail for bankrupting one of Japan's largest scam companies in Japan.