Liar Game (ライアーゲーム, Raiā Gēmu) is a Manga series written by Shinobu Kaitani. The manga was first serialized in 2005 in the Japanese manga magazine Weekly Young Jump, published by Shueisha. It was later adapted into a drama series, which started airing on April 14, 2007 on Fuji TV.
Kanzaki Nao, an honest college student, receives 100 million yen (about $1,000,000) and an invitation to participate in something called the "Liar Game Tournament". When Nao is easily tricked by her opponent, Kazuo Fujisawa, she turns to ex-convict and genius swindler Akiyama Shinichi for help out of desperation to get the money back. Though Akiyama is reluctant, he agrees to help on the condition that they steal Fujisawa's money as well, and that he takes half the profits as his reward.
Akiyama succeeds in taking all the money and winning the game for Nao. However, Nao and Akiyama's success at the Liar Game is far from over and each time they think the game is over, they are forced to return again with higher stakes. Though initially unwilling participants, the pair choose to continue in the game in order to discover the true nature of the organization involved and to try to free other participants from the Liar Game.