Teenage Mutant Ninja Turtles: The Last Ronin is a five-issue comic book miniseries published by IDW Publishing. The series is written by Kevin Eastman and Tom Waltz, based on a story by Eastman and Peter Laird, and drawn by Esau and Isaac Escorza, Ben Bishop, and Eastman. The story follows characters from the Teenage Mutant Ninja Turtles franchise in an alternative future, wherein the last remaining turtle seeks to avenge the death of his brothers by killing the grandson of one of the Turtles' arch-enemies, the Shredder. Despite being published by IDW, it is unconnected to the IDW series' continuity and is set in its own universe, dubbed the "Roninverse".