Terrific Time Travel Fics

Good fanfiction involving time travel as a major plot point
(Open, Moderated)
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Summary
Aizawa Shouta was tired.
Crouched on the edge of the roof as he was, he observed the streets below him silently. He was coming to the end of his patrol, and if everything remained as it was, he'd be able to catch a decent nap before having to report in to the school for another round of proctoring.
Which, of course, is when he saw the kid being chased down the alley.
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Or Izuku is your average 21st-century kid. Being sucked through a time-traveling portal and dropped in the middle of a fantasy world with supervillains was not his idea for a good start to the new school year. Good thing he has everyone's favorite underground hero keeping an eye on him. With a hero by his side, how much trouble could he possibly get into while trying to find his way back home?
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Seventeen-year-old Haruno Sakura died in the Fourth Shinobi World War with a weary smile resting on her face. She never expected to wake up again, but when she does, she's three-years-old and wields the scarlet eyes of a murderer. She doesn't deserve a second chance, however fate gave it to her, and no one refuses fate.
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Thirteen is too young to gain eight years of memories that might come to pass--especially when you don't even know what to do with yourself in the present. But when the future is that bloody and dark, do you have any choice but to try to change it?
He remembers the absolute agony of the doctors trying to save him, which finally sent him into blissful unconsciousness—
—except he doesn’t remember any of that. Tsuna’s last memory is of putting his head down on his desk and falling asleep to the sound of the teacher’s droning, thirteen years old and tired of not understanding a word, not of being twenty-two and beloved and dying.
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Aang's energybending fails, and the war is lost. But before the gaang can blink, they wake up in the past, on the day that Katara and Sokka found the Avatar.
The war's a lot easier to win when your biggest enemies are on your side from the beginning.
Ft. the gaang's antics, loads of dramatic irony, and literally the entire Fire Nation being confused as to why, when, and how the banished prince got happy emotions and friends
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The war was over. Sasuke was still an idiot, but they were mostly getting over that. Everyone else was just trying to get back to some semblance of normalcy in the era after facing the Juubi and losing so much. Hatake Kakashi never wanted to be Hokage but that's what he became. With that comes enemies. During an ambush, Naruto jumps in front of a Jutsu that would tear his former Sensei's soul from his body. The Jutsu begins to tear Kurama away instead. In a desperate bid to save both his and Naruto's life, Kurama does something almost as unpredictable as his host. He tries to send them back in time a day. This would have worked just fine, except Kurama might have...overshot things a bit.
Oh, wow is that a chibi Naruto running around? What year is it again?
Jiraiya begins hearing rumors of a man called the "Lost Uzumaki" that has made a seismic debut on the shinobi world stage. The only thing is that S-class nin don't just pop out of nowhere...usually. Jiraiya is sent to track down the nin and determine his loyalties. His new life depends on a good impression. The good thing is that Uzumaki Naruto's true superpower is his ability to talk even the most unwilling into submission.
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Summary
Aizawa Shouta was tired.
Crouched on the edge of the roof as he was, he observed the streets below him silently. He was coming to the end of his patrol, and if everything remained as it was, he'd be able to catch a decent nap before having to report in to the school for another round of proctoring.
Which, of course, is when he saw the kid being chased down the alley.
***
Or Izuku is your average 21st-century kid. Being sucked through a time-traveling portal and dropped in the middle of a fantasy world with supervillains was not his idea for a good start to the new school year. Good thing he has everyone's favorite underground hero keeping an eye on him. With a hero by his side, how much trouble could he possibly get into while trying to find his way back home?
- Language:
- English
- Words:
- 24,605
- Chapters:
- 12/?
- Collections:
- 10
- Comments:
- 588
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- 2654
- Bookmarks:
- 851
- Hits:
- 33731
Bookmarked by Mayhap_Mishap
14 Jan 2021
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Bookmarker's Notes
“Midoriya-kun,” Tsukauchi leaned in, his tone gentling further, “we’ve been able to confirm that a time-warping quirk was used to transport you from the 21st century -- the time that you were living in -- into the current 23rd century. The investigation is still open, and at this point, we are left with more questions than answers. But if there is anything I can clear up for you, please don’t hesitate to ask me.”
Izuku blinked. And blinked again. “Are...are you telling me that I was actually kidnapped to the future? ”
The detective met Izuku’s disbelieving stare with an unwavering one of his own. “That is exactly what I’m telling you, Midoriya-kun.”
A laugh bubbled up through Izuku’s chest and escaped; first one, and then another. And suddenly he couldn’t stop. Leaning over, his hands gripped his hair as he stared wide-eyed and unseeing at his lap. The future? What even was his life anymore?
Abruptly, his laughter cut off as he came to a realization. “My mom is going to be so mad.”
“It’s ok, Midoriya-chan,” Tsuyu soothed with a hand to his shoulder as the mountain of a man took off with a burst of air to face the Nomu. “It’s only All Might, kero .”
“You know that guy?” Izuku demanded.
“YOU DON’T ?!” Mineta shrieked.
(Skip by GrumpySunshine)
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trees uprooted (considerable damage) by Shializaro
Fandoms: Dreaming of Sunshine - Silver Queen
31 Dec 2020
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Sasuke and Shikako are stuck in the middle of the worst-prepared most wildly successful accidental infiltration mission of their lives. Now they face several problems, including but not limited to overly affectionate legendary ninja, cultural differences between time periods, the nature of the multiverse and, worst of all, emotions. But they'll manage. They're Team 7, after all.
- Language:
- English
- Words:
- 3,311
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 35
- Kudos:
- 516
- Bookmarks:
- 113
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- 2459
Bookmarked by Mayhap_Mishap
10 Jan 2021
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Bookmarker's Notes
Shikako grimaces, though. “Well, I’ll try to think of something,” she concludes. “But it’s really gonna take a while. We might end up closer to where we left, time-wise, so we probably won’t get yelled at by everyone, but from our perspective it’ll probably be months.”
Sasuke snorts. Months, to crack interdimensional time travel. If Tobirama didn’t try to murder Shikako the next time they saw each other — never, hopefully — they would get along like a house on fire. Or, more likely, a planet on fire. What do you call two mad scientists in a room: A catastrophe.
8/10
(trees uprooted (considerable damage) by Shializaro)
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All but One by aconstantstateofbladerunner for SkyGem
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
30 Sep 2020
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Summary
Toshinori is given the opportunity to undo over two decades of suffering by going back in time and ending All For One. And that’s just the beginning. He goes on to use his knowledge of the future to correct errors of the past, and makes his new reality infinitely better than the one he came from. Better in every way but one.
Based on a bittersweet post by @skygemspeaks and @autisticmight
[If you see this fic anywhere that isn’t the official AO3 website, it’s stolen.]
Bookmarked by Mayhap_Mishap
12 Dec 2020
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Mrs. Shimura pulled out a tiny black glove that covered the pinky and ring finger. Perfect for a child just out of the toddler years. “It’s adjustable.” Toshinori anxiously rubbed his hands together. “And there’s a number inside the box to my support company. If they don’t fit or he wants a different color or whatever, just give them a call and they should set you up. Free of charge, of course.” I feel like a used car salesman. ‘If your son qualifies as a future supervillain, call now and get complimentary glove servicing!’
8.5/10
(All but One by aconstantstateofbladerunner)
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Hindsight by DragonflyMoshPit
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
03 Sep 2019
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10-year-old Izuku doesn’t know what he’s done to gain All Might’s attention, but he’s definitely not complaining. Or: All Might travels back in time, and he’s not about to make the same mistakes again.
- Language:
- English
- Words:
- 2,261
- Chapters:
- 1/1
- Collections:
- 9
- Comments:
- 89
- Kudos:
- 1830
- Bookmarks:
- 448
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- 9840
Bookmarked by Mayhap_Mishap
30 Sep 2020
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“All Might,” Izuku says haltingly. “Do you think I can be a hero...even without a quirk?”
And the look All Might gives him is so gentle and fond, with none of the pity Izuku expected.
“Young Midoriya,” All Might says with conviction, “whether or not you have a quirk, you are going to be a remarkable hero. And anyone who tells you otherwise is a fool.”
8/10
(Hindsight by DragonflyMoshPit)
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Summary
After attempting to transport all of his siblings back in time, Five wakes up to a familiar scene. Again. And again. And again. He doesn't know why he keeps being transported back to the day of his father's funeral, but he is determined to not waste it now that he has the foresight to prevent the apocalypse. He just wished he didn't feel so alone doing it all over again.
Series
- Part 2 of The Sky Weeps