From Null:
Congratulations! You are one of the 1 in 100,000 people who have been entered in the amazing LIAR GAME TOURNAMENT!
Along with the postcard there are 100 million yen in notes. That's the beginning of the Liar Game. When the game ends, in 30 days, you will have to return your 100 million. If your opponent steals them, he can keep them as a prize, and you will have a debt of 100 million...
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Nao Kanzaki has been dubbed a "foolishly honest girl" for her excessive faith in the best of others. When a package arrives at her house, she, unsuspecting, opens it only to discover her admittance into the Liar Game -- a twisted, tournament game involving 100 million yen! The profits are high, but so are the prospects of losing.
Allying with an ex-convict, how will she be able to cope with the circumstances? And what is the true intent of the corporation behind the Liar Game?
A mind-boggling, psychological thriller that looks into the nature of the human mind as well as the never ending battle between truth and lies.