Well, the Tekken story has been evolving over the series. The Mishima family feud is a central part. Heihachi Mishima is a key figure. He's often in conflict with his son Kazuya. And many other characters get dragged into their battles through the tournaments that are held to decide who has the ultimate power in the martial arts world. The story is filled with betrayals, power struggles, and the search for self - identity among the fighters.
The Tekken game story is set in a world of martial arts. The Mishima Zaibatsu, led by Heihachi Mishima, hosts the Iron Fist Tournament. Kazuya Mishima, Heihachi's son, has his own agenda against his father. There are also other characters like Jin Kazama, who is also part of the Mishima lineage. Each character has a backstory that ties into the overall plot. For example, some are seeking to avenge their families, while others are after the power that winning the tournament can bring. The story is a web of relationships, power plays, and martial arts battles that span across multiple games in the series.