1 - 20 of 60 Works in Guilty Leonardo (TMNT)
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Blue Masked Boy by lArtiel
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Samurai Rabbit: The Usagi Chronicles (Cartoon)
30 Jan 2026
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A string of events led to Yuichi being an ‘errand boy’ for New York hidden city notorious big mama. He’s been all over the hidden city doing whatever odd job she wants, from simple tasks like grabbing her a coffee, guarding illegal deals, to her dirty work… after one of those peculiar jobs he runs into a Kappa Yokai, by far the most beautiful Yokai he's ever met.
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Heart of the Hamato Clan (2026) by AG_The_Writer
Fandoms: Teenage Mutant Ninja Turtles (TV 2012)
30 Jan 2026
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AN UPDATED VERSION OF MY 2023 FANFIC
This angst/hurt/comfort story takes place five months after Splinter's death, following the events of Season 4 of TMNT (2012).
Mikey runs away to April's farmhouse after being coldly berated by his brothers during a messed-up patrol. When his brothers go to find him, Mikey is struck by a giant, mutated snake while trying to protect some mutated gophers.
This incident leads to another argument, during which Mikey finally lashes out at his brothers, venting years of pent-up anger and sadness. However, he soon becomes gravely ill due to the snake's potent venom, much to his brothers’ horror.
In a race against time, the brothers seek help from the mutated gophers, desperately trying to find a cure for the poison within five hours, or else Mikey will die.
Through this challenging ordeal, the brothers come to understand the true value and power Mikey holds within the family, realizing just how close they came to breaking apart. They vow to do anything to make things right.
Can they save their baby brother from an agonising death before it's too late? Will they be able to rekindle their brotherhood, or is this the end of the Hamato Clan?
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THIS IS AN UPDATED VERSION OF MY OLD MIDNIGHT FANFICTION
Set in an alternate universe at the start of The Croaking, Mikey got hurt by his brothers for trashing the place, but instead of running away, he cleans up the place and tries to make it up to his brothers. However, when he heard his family talking about him horribly behind his back, it was the last straw, and Mikey ran away from his family, vowing never to return.
It wasn't long before he was kidnapped by a strange alien from another universe. Five months later, the Hamato family finds Mikey in his new brain-washed form, Midnight
They realise that not only do they have to save him, but also to make sure Virus doesn't use Mikey for world conquest.
Determined to save Mikey and make amends for the terrible mistakes the brothers make, they will stop at nothing to save him, but it will be a challenge since Midnight proves to be their toughest enemy yet
Can Mikey be saved from Midnight's power? Can the family be restored once more? Or will their doom fall upon them?
RATED PG-13 FOR THEMES OF BLOOD & HORROR, VIOLENCE, SOME COURSE LANGUAGE, SAD THEMES & SOME CHARACTER DEATHS
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A Better Brother (2025) by AG_The_Writer
Fandoms: Teenage Mutant Ninja Turtles (TV 2012)
24 Dec 2025
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AN UPDATED VERSION OF ONE OF MY FANFICS
After a messed-up patrol, leaving Mikey injured because of the three brothers' actions, Splinter punishes them from going to the surface until they can learn to work and adapt with Michelangelo together.
It is then that Donatello created a drug called the BIO (Bionic-Intelligence-Organism) that boosts Mikey's intelligence, his behaviour and his strength.
Hoping that this would lift the punishment, the three brothers went along with the plan and tricked Mikey into eating a pizza with the drug in it, and soon the formula worked
For the time being, the BIO transformed Michelangelo for the better as he is more mature, a lot smarter, stronger and even better at things
But as the drug gets stronger and stays longer in Mikey's system, it begins to turn him into a different person, something cold, something opposite of who Mikey is...Something sinister
Will the family find a way to reverse Mikey back to his natural self or will this dangerous new Mikey be their downfall?
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Hollow Echo by cupfee for qolden
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
17 Dec 2025
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Shredder would destroy the Hamato clan from within. An infection would eat away at them little by little, until nothing remained. His intention was clear: he aimed at the captain of the ship.
But the responsibility for pulling the trigger wouldn't be his.
or
I turned caged lunges by golden into a multiversal event.
Series
- Part 1 of metamorphosis
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Guardian by Windify
Fandoms: Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles - All Media Types
16 Dec 2025
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Guardian
noun
• a person who has the legal right and responsibility of taking care of someone
• someone who protects somethingAfter the turtles get separated on a different planet, Leonardo must accept the post of a Guardian in order to save his brothers, all the while hoping he doesn't lose himself in the process.
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The Journal of Hamato Leonardo (3) by Slady
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
01 Dec 2025
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2012 “Teenage Mutant Ninja Turtles”
Daily updates for each episode of Season Three from the perspective of the turtle team leader Leonardo.
Series
- Part 3 of 2012 The Journal of Hamato Leonardo
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suffering with you by MelonPalooza
Fandoms: Batman - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
31 Oct 2025
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Summary
Dick leaves his family to protect them. Bruce's spirit tags along.
(At least... Dick assumes it's his spirit.)
((It's happened before, right? It can happen again...))
Series
- Part 10 of DC/TMNT: Earth-2012
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Leo's Nightmare (A Mutant Apocalypse Fanfic) by MlpTmntDisneyKauane
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles - All Media Types
21 Oct 2025
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Several years separated in the Wasteland, the family is finally reunited and living in the Oasis, but Leonardo is not mentally well, he is suffering from a trauma, has nightmares every night, and from time to time he distances himself from his family and blames himself for the things he did, from when he was... Maximus Kong.
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You Killed Me by Multidimensional_Scribe
Fandoms: Teenage Mutant Ninja Turtles (TV 2003)
12 Oct 2025
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It turns out consuming a poisonous substance twice in a span of less than twenty four hours has more unintended consequences than acute nausea.
Leo and Don learn this the hard way as they watch Mikey collapse after they forced him to eat floor wax. Now his life hangs in the balance. Their Team is fractured. They are light years away from home and help, and they are imprisoned by those who would be all too willing to let Mikey die.
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Shattered Light by BrightLotusMoon
Fandoms: Teenage Mutant Ninja Turtles (TV 2003), Teenage Mutant Ninja Turtles - All Media Types
23 Sep 2025
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Michelangelo goes missing, and is found bearing heavy surgical scars, severe burn marks, cracks and breaks in his shell, and evidence of total violation - all signs of being experimented on and discarded. The family struggles to break through the aftereffects, which include vicious flashbacks with violent emotional reactions. Leonardo tries meditation to reach him and unleashes Mike's bizarre and horrific coping mechanisms, which are far darker than the family had expected.
Series
- Part 3 of In Darkness And Light
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Ten Rules and the Minor Incovenience of Fire by the_frosted_dreamer
Fandoms: Percy Jackson and the Olympians - Rick Riordan, The Heroes of Olympus - Rick Riordan, The Trials of Apollo - Rick Riordan
09 Aug 2025
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Leo Valdez doesn’t do 'feelings'. But a certain Percy Jackson is making that a little bit complicated. When things are complicated, Leo makes a lot of mistakes. A lot. He ends up hurting the son of Poseidon in the process—and himself. He doesn’t know if things will be okay after that.
But he's going to try.「Will sighs. “He’s fine.”
Leo’s breathing slows down a little, as does his heartbeat, although it doesn’t pound any quieter. “Then why are you acting like he isn’t?”」Series
- Part 1 of ʀɪᴏʀᴅᴀɴᴠᴇʀsᴇ sʜᴏʀᴛ sᴛᴏʀɪᴇs
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Just For You by JustaLittleBitCrazy
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
31 Jul 2025
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Summary
Time ticks by.
Minutes turn into days, weeks bleed into months.
Seasons come and go like the ebbing and flowing tide, bringing with them change as the years pass by.
Wounds heal, scars fade, along with memories.
Some disappear and some stay with a person for life, changing them like the shifting seasons, bringing out the best in some...
but the worst in others.
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Years after the krang invasion Leo is attacked and sexually assualted by a genius he has known for a long time, who learned how to not only grow krang tendrils in her lab but also how to take control of them to make them do whatever she wants. His morally ambiguous twin brother seeks revenge - and what better way than to attack a person's psyche?
Non-con is implied, this au deals mostly with the aftermath.
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Mystic Cracks by IzZyWritez
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
23 Jul 2025
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Mikey Sacrifices himself to save Leo
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An Empty Bliss Beyond This World [DISCONTINUED] by BugTheWildflower
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
22 Jul 2025
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Summary
Shedder and his Foot ninja nearly killed Leonardo. They left him battered and scarred physically, mentally, and emotionally. His brothers try their best to raise his spirits and help him recover while they are at the farmhouse. They quickly come to the startling realization that Leo has not been okay for a long time, and the invasion only made him worse. They may have saved their brother from the brink of death, but can they help him want to live?
I suck at summaries lol. This is set after the Season 2 finale and during Season 3, but I am not going into all the storylines they had during that time. I am an independent gal who wishes to give my boy in blue trauma and a realistic response.
(The title is the name of the Caretaker's studio album 'An Empty Bliss Beyond This World')
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The Space Between a Touch by stellaspectral
Fandoms: Teenage Mutant Ninja Turtles (Bay Movies), Teenage Mutant Ninja Turtles - All Media Types
22 Jul 2025
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Your enemies used you against the turtles once. You won’t let it happen again.
To prove you’re no longer a liability, you take to the shadows alone. But Raph—he’s terrified he’ll lose you for good.
Series
- Part 15 of TMNT Requests
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Summary
He gave everything.
Series
- Part 1 of TMNT 2012 Oneshots
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Pain is NOT Beauty by Zzz_agreus
Fandoms: Percy Jackson and the Olympians - Rick Riordan, The Heroes of Olympus - Rick Riordan
04 Jun 2025
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Summary
Leo, Jason, and Percy face an unknown foe during one of their sidequests. Or is this foe really unknown? Is he a demigod gone rouge? Maybe Leo knows?
Or
Leo, Jason, and Percy meet Leo’s past lover. Jason’s jealous even though he has a girlfriend. And Percy is just here for all of it.
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¡No mas ordenes! by M_DAY
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012), Teenage Mutant Ninja Turtles (Bay Movies), TMNT (2007)
31 May 2025
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Summary
Cuatro años de silencio.
Cuatro años de ausencia.
Rafael desapareció sin dejar rastro, rompiendo la hermandad como si nunca hubiera existido.
Pero el destino, terco e implacable, ha decidido reunirlos de nuevo.
Una herida abierta. Un reencuentro inevitable.
Y un secreto que podría romper todo lo que aún los une.
Cuando el pasado regresa con el rostro de un hermano,
¿serán capaces de enfrentarlo… o dejar que los consuma? -
Cost of the Fight by stellaspectral
Fandoms: Teenage Mutant Ninja Turtles (Bay Movies), Teenage Mutant Ninja Turtles - All Media Types
31 May 2025
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Summary
You took a hit meant for Leo and now, as you lie injured, his guilt makes him spiral. In the face of fear, the line between teammate—and something more—blurs, forcing a raw confrontation with the unspoken feelings between you.
Series
- Part 5 of TMNT Requests