When Nao Kanzaki receives a strange letter and a suitcase containing 100 million yen, she learns that she has been selected to participate in the LIAR GAME. In this high-stakes psychological battle, lies, deception, and betrayal reign supreme. Naïve and honest, Nao turns to Shinichi Akiyama, a brilliant former con artist, to survive the twisted game. In a game built on lies, can honesty prevail?

Childhood friends Hayato and Haruki reunite after a long time. Hayato finds that Haruki has become a beautiful and popular girl. Now starts a new chapter in their relationship.