History ComicBook / TeenageMutantNinjaTurtlesTheLastRonin

* {{Ronin}}: [[spoiler: Michelangelo]], though not in the historical sense. In Japan, a ronin was a samurai without a master to serve. [[spoiler: Mikey]] is a ninja who lost his father and sensei and his brothers.

A follow up entitled ''[ComicBook/TeenageMutantNinjaTurtlesTheLastRoninLostYears The Lost Years]]'' began in January 2023. It tells two parallel stories: the Last Ronin's journey back to New York after becoming a ronin, and the daughter of Casey Jones raising a new team of mutant ninja turtles.

A follow up entitled ''[[ComicBook/TeenageMutantNinjaTurtlesTheLastRoninTheLostYears The Lost Years]]'' began in January 2023. It tells two parallel stories: the Last Ronin's journey back to New York after becoming a ronin, and the daughter of Casey Jones raising a new team of mutant ninja turtles.

!!''The Last Ronin: The Lost Years'' contains examples of:
* BadAssFamily: After becoming a full fledged ninja, Casey Marie creates Moja, Uno, Yi, and Odyn. She trains them in ninjitsu, but she also takes care of them like a mother. Casey's own mother April was a resistance fighter most of her adult life. She also treats the new mutant turtles as her own grandchildren. They even call her Grammy April.
* BlindWeaponmaster: The Ronin spent a few years blind from radiation poisoning, but he received training from another blind master to compensate for his lost sight until his injuries healed.
* HeroicSacrifice: ''Lost Years'' revealed that the Ronin spent some time imprisoned in an underground fight ring pitting humans against mutants. When the last two fighters were the Ronin and his human friend Shaka, Shaka deliberately provoked the guards into killing ''him'' so that the Ronin would survive to fulfil his vendetta against Death Worm.
* LegacyCharacter: Yi, Moja, Uno, and Odyn succeed Leo, Raph, Mikey, and Don as the next generation teenage mutant ninja turtles of the Hamato Clan, particularly Yi succeeds Donatello as TheSmartGuy.
* MeaningfulName: Yi, Moja, Uno, and Odyn's names mean "one" in different languages.
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A follow up entitled ''The Lost Years'' began in January 2023. It tells two parallel stories: the Last Ronin's journey back to New York after becoming a ronin, and the daughter of Casey Jones raising a new team of mutant ninja turtles.

An official sequel, ''The Last Ronin II: Re-evolution'' has been announced, starring the four new turtles as a new team of heroes. A one shot released in July 2023, ''The Lost Day'', helped do some world-building and setting up the new status quo.

* RelatedDifferentlyInTheAdaptation: The sequel reveals that in this continuity, Oroku Nagi was Saki's father instead of older brother. Likewise, Kra is Saki's daughter, but this has been done in other continuities already.

CrapsackWorld: Earth has been ravaged by climate change, and New York City has been cut off from the rest of the world and ruled by the Foot Clan.

* TwentyMinutesIntoTheFuture: The year is never specified, but it’s implied to be in the near future as a flash back shows April as a child during 9/11. In this future, flying cars, robots, and holograms are common place, and Earth is suffering from the effects of climate change.

* TwentyMinutesIntoTheFuture: The year is never specified but flying cars, robots, and holograms are common place, and Earth is suffering from the effects of climate change.

* 20MinutesIntoTheFuture: The year is never specified but flying cars and holograms are common place.

* SnowMeansDeath: [[spoiler: Both Donatello and Splinter die on a snow covered battlefield in Japan]].

* SnowMeansDeath: [[spoiler: Both Donatello and Splinter die on a snow covered battlefield in Japan]].

[[https://www.polygon.com/23645176/tmnt-last-ronin-video-game-graphic-novel-ninja-turtles A video game adaptation was confirmed to be in the works]] on March 23, 2023 by Paramount Global’s senior VP of games and emerging media, Doug Rosen. Published by Creator/THQNordic and developed by Black Forest Games (the developers behind ''VideoGame/GianaSistersTwistedDreams'' and the remakes of ''[[VideoGame/DestroyAllHumans2020 Destroy All Humans! 1]]'' and ''[[VideoGame/DestroyAllHumans2Reprobed 2]]''), the game is planned to be an ActionRPG in the vein of ''VideoGame/GodOfWarPS4'', and is set to be released on PC, UsefulNotes/PlayStation5, and UsefulNotes/XboxSeriesXAndS. The announcement trailer can be viewed [[https://youtu.be/nx2ixJFWXcg here]].

* HeroicSacrifice: ''Lost Years'' revealed that the Ronin spent some time imprisoned in an underground fight ring pitting humans against mutants. When the last two fighters were the Ronin and his human friend Shaka, Shaka deliberately provoked the guards into killing ''him'' so that the Ronin would survive to fulfil his vendetta against Death Worm.

* DamnedByFaintPraise: [[spoiler:As Mikey points out to Hiroto, as evil as Karai was, she did have some honor.]]

* NeverMessWithGranny: April is now a much older woman and missing an arm and a leg, but she has prosthetics to replace her lost limbs, and is the still-badass leader of LaResistance, fighting alongside her daughter Casey Marie, Michelangelo, and the rest of the resistance to free New York from the Foot Clan.