History ComicBook / TeenageMutantNinjaTurtlesTheLastRoninLostYears

Due to the [[FirstEpisodeTwist First Issue Twist]] of ''The Last Ronin'', it's difficult to discuss ''Lost Years'' without revealing spoilers for ''The Last Ronin''. As such, '''all spoilers for will be unmarked. Please proceed with caution.'''

Released in January 2023, ''Teenage Mutant Ninja Turtles: The Last Ronin: The Lost Years'' is both the sequel and prequel to ''[[ComicBook/TeenageMutantNinjaTurtlesTheLastRonin The Last Ronin]]''. It tells two parallel stories: the Ronin's journey back to New York after the death of his last remaining family in Japan, and the daughter of Casey Jones raising a new team of mutant ninja turtles.

* MaybeMagicMaybeMundane:

!!!The Ronin's Journey

!!!The Next Generation

* NumericalThemeNaming: Yi, Moja, Uno, and Odyn's names mean "one" in different languages. This crosses over into MeaningfulName because Casey chose those names to remind the turtles that they are one family.

* 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.

Due to the [[FirstEpisodeTwist First Issue Twist]] of ''The Last Ronin'', it's difficult to discuss its sequel/prequel without revealing spoilers. As such, '''all spoilers will be unmarked. Please proceed with caution.'''

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* NumericalThemeNaming: Yi, Moja, Uno, and Odyn's names mean "one" in different languages. This crosses over into MeaningulName because Casey chose those names to remind the turtles that they are one family.
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After Mikey dies killing Oroku Hiroto, Mikey's student Casey Marie and her mother April mutate four ordinary baby turtles named Yi, Moja, Odyn, and Uno and train them in various martial arts styles to succeed Donatello, Leonardo, Raphael, and Michelangelo as the next generation of teenage mutant ninja turtles.

Released in January 2023, ''Teenage Mutant Ninja Turtles: The Last Ronin: The Lost Years'' is both the sequel and prequel to

''[[ComicBook/TeenageMutantNinjaTurtlesTheLastRonin The Last Ronin]]''. It tells two parallel stories: Michelangelo's journey back to New York after becoming a ronin, and the daughter of Casey Jones raising a new team of mutant ninja turtles.

For three years after the last of his family died, Michelangelo found peace living in the wilderness of Hokkaido, Japan with only his father's journal to guide him. This changed when terrorist Death Work and his crew slaughtered and burned a nearby village. Now Mikey is on a quest to take down Death Worm.

* MeaningfulName: Yi, Moja, Uno, and Odyn's names mean "one" in different languages.

Released in January 2023, ''Teenage Mutant Ninja Turtles: The Last Ronin: The Lost Years'' is both the sequel and prequel to ''[[ComicBook/TeenageMutantNinjaTurtlesTheLastRonin The Last Ronin]]''. 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.

* 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: 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.

After Mikey dies killing Oroku Hiroto, Casey Marie and April mutate four ordinary baby turtles named Yi, Moja, Odyn, and Uno and train them in various martial arts styles.

For three years after the last of his family died,
Michelangelo found peace living in the wilderness of Hokkaido, Japan with only his father's journal to guide him. This changed when terrorist Death Work and his crew slaughtered and burned a nearby village. Now Mikey is on a quest to take down Death Worm.

After Mikey dies killing Hiroto, Casey Marie and April mutate four ordinary baby turtles and train them in the art of ninjutsu.

Released in January 2023, ''Teenage Mutant Ninja Turtles: The Last Ronin: The Lost Years'' is both the sequel and prequel to ''[[ComicBook/TeenageMutantNinjaTurtlesTheLastRonin The Last Ronin]]'' 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.