After the events of Tekken 6, though Azazel was destroyed by Jin Kazama, the war between the Mishima Zaibatsu and G Corporation continues to ravage the world. The game's story is told from the perspective of a reporter whose wife and son are killed in the crossfire, leading him to begin writing an exposé on the Mishima Zaibatsu and G Corporation. Nina Williams leads the Zaibatsu in Jin's absence, attempting to locate him, but Heihachi Mishima takes advantage of the vacuum of power and forces Nina to work for him, regaining control of the Zaibatsu.
Tekken 7 focuses on 1v1 battles. New features to the gameplay include:
Rage Art: A critical move unique to each character and only accessible while in Rage mode, causing it to deactivate until the next round. If the initial attack hits the opponent, it will trigger a cinematic sequence and deal roughly 30% damage, depending on the character.
Power Crush: Performs an attack that can absorb an opponent's hits with the Mid or High property and continue attacking.
Screw hits: This largely replaces the Ground Bound (formerly simply as Bound) mechanic, which added significant opportunity to perform long, high-damage combos, by knocking an opponent hit with a launcher back to the ground into a vulnerable state. Screw hits have similar applications as Ground Bounding moves, but the receiving opponent's animation is altered, putting them into an aerial tailspin (i.e. a "screw") as they fall to the ground. Unlike the Ground Bound, Screw hits cannot be used to do wall combos.
Source: Wikipedia, "[en.wikipedia.org/wiki/Tekken_7 Tekken 7]", available under the CC-BY-SA License.