As Jin begins transforming, he attacks and defeats his father. Next, Heihachi attempts to kill Jin and take his power for his own. Īgain, based on subsequent Tekken games, Jin's ending is made the story's central focus, with Tekken 5's introduction sequence set only seconds afterward. G Corporation (the rival company to Heihachi's Mishima Zaibatsu) sends an army of Jack robots to kill Heihachi and Kazuya. The two cooperate briefly, but Kazuya betrays Heihachi. The Jacks self-detonate, destroying the Hon-Maru and apparently killing Heihachi. However, Hon-Maru was the location where Heihachi had sealed his father, Jinpachi Mishima, approximately three decades earlier.
Jinpachi is freed when Hon-Maru was destroyed. Jin's Story Mode Prologue states that, immediately after leaving Hon-Maru, Jin's own Devil Gene went berserk. Jin soon found himself awakening inside of an utterly destroyed forest, realizing that he was the cause of the destruction.
After returning to Yakushima, he is plagued by recurring nightmares and realizes that it's only a matter of time before the Devil Gene completely takes over. From here, the story shifts to Devil Within. In the aftermath of the fifth Iron Fist Tournament, Jin has been revealed as the winner and is now the new CEO of the Mishima Zaibatsu.
