After the events of Tekken 6, Jin Kazama disappeared, and the war between the Mishima Zaibatsu and G Corporation continues. Meanwhile, an investigative journalist, who lost his wife and son during the war that Jin started, begins to narrate the story of the Mishimas. The rest of the game is also told from your perspective.
It’s 40 years ago, and five-year-old Kazuya Mishima is fighting his father, Heihachi Mishima. Kazuya is violently kicked by Heihachi, and when Kazuya gets up, he becomes furious and screams that Heihachi killed his mother. Heihachi beats Kazuya and throws him off a cliff, setting the tekken games in motion.
In the present day, Heihachi returns to the Mishima Zaibatsu building and regains control of the Mishima Zaibatsu after defeating several tekken force soldiers and its commander, Nina Williams. He announces the next Iron Fist King Tournament. Heihachi and Nina make a deal with Claudio Serafino, who is the leader of the Sirius Archers, a secret society of exorcists with extensive resources. Heihachi intends to expose Kazuya, now the current CEO of G Corporation, as a devil, as Kazuya possesses the devil gene. He thus hopes to turn public opinion against the G-corporation. Claudio objects to helping the Zaibatsu, but Heihachi forces him to agree after he beats him.
Elsewhere, the journalist searches for information and discovers something about the history of the Mishimas. It brings together the fact that Heihachi’s father, Jinpachi Mishima, was imprisoned under Hon-Maru, and the death of Heihachi’s wife, Kazumi Mishima Née Hachijo, happened in the same year that Heihachi threw Young Kazuya off a cliff.< /p>