Based primarily on the first game in the series, Phoenix Wright: Ace Attorney, the film focuses on rookie defense attorney Phoenix Wright, as he strives to protect his clients in various murder trials, including the death of his mentor, Mia Fey, and the accusation of rival prosecutor, Miles Edgeworth. Phoenix's greatest ally is Mia's younger sister Maya, a spirit medium whose body is posessed by Mia to communicate with him.
3 years after the ultimate life-or-death game with Teiai Group, Kaiji was entrapped by Teiai and again back in the underground, forced to do hard labour. One day, Kaiji wins a bet to get out of the underground with 1 million yen, and promises the other workers that he will save them. But to do so, he only has 14 days and needs 200 million yen! Kaiji meets his former rival Tonegawa and learns that there is a chance to turn the tables in the game. It was a monster casino machine that will make 1 billion yen if you win...