Last Ranker centers on a tournament and world of fighters called "rankers". You play as Zig, a scowling, hot blooded drifter who aspires to be top ranker. After each fight one ranker's rank rises and the other falls.
Kazuya Niinou, one of the key team members on 7th Dragon, tells Famitsu Last Ranker is inspired by kid's fighting manga. Think of Dragon Ball, Naruto, Bleach, or any other series that has some kind of tournament. Last Ranker is said to emphasize the relationships and rivalries that go on between fights. Ren, a survivor from a ruined kingdom, and Fez, one of Zig's friends when he was a kid, are two adversaries you'll meet.