Liar Game: The Final Stage (2010)

"College student Nao Kanzaki (played by Toda Erika) was accidentally involved in a terrifying game called Liar Game one day. The game is played by opponents who cheat each other to obtain huge bonuses. Xiao Zhi believes in the "theory that human nature is inherently good". During the game, no matter how many lies and betrayals she encounters, she will treat her with the most sincere attitude..."