To exact revenge, the Liar Game office is revived. The target is only one person – Shinichi Akiyama (Shota Matsuda). Because of new heroine Shinomiya (Mikako Tabe), Shinichi, who kept refusing to take part in the game, finds himself in the game. Along with Akiyama, there’s 19 other players competing for the prize of 2 billion yen. Omega (Makiko Esumi), who revived the game, plays the game at the Liar Game office with Alice (Mana Ashida). Alice sets up the game, chooses the players and sets the traps.

Saburo is a high school student good in sports, but not very good with his studies. One day, Saburo travels back in time and arrives in the Sengoku period of 1549. There, Saburo meets Nobunaga Oda who looks and sounds just like Saburo. Nobunaga Oda is the son of a warlord and magistrate of the lower Owari Province. Nobunaga Oda though is physically weak and he asks Saburo to take his place. Then, Saburo as Nobunaga Oda attempts to unify the country of Japan.