Hokuto no Ken 4: Shichisei Hakenden takes place in a world after the collapse caused by a nuclear war. The main character of the game is Ken Shirou, also known as the user of the Fist of the North Star, who is the protagonist of the series. He must fight to protect the people from those who threaten and attempt to control a world full of chaos. The game focuses on the search for the Seven Stars Fist, a powerful martial art technique. The user of the Fist of the North Star must battle against powerful and influential enemies, including new foes that have never appeared in the original manga or anime series. The game is centered around one-on-one or team-based combat, allowing players to control multiple characters. Players can choose the characters they wish to play as, each with their own unique fighting skills and special moves. For example, Ken can use his famous Fist of the North Star attack, while other characters have their own signature fighting techniques.