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GAKU MARUKO VERSUS COMPULSORY HETEROSEXUALITY: THE MOVIE: THE GAME by aaronwrites
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
07 Jul 2025
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Gaku Maruko is an ordinary teenage boy living in the Tokyo Residential Complex who has been left directionless with the start of summer vacation. With nothing to do except figure out how to grow into a somewhat self-respecting young man, he steals away the most popular guy he knows, Takumi Sumino, for a day full of assorted antics. In the midst of wasting away their lives, Gaku realizes something important about how he sees Takumi— and wishes he could put that realization right back where he found it.
In another life, that would've been it.
Gaku Maruko is a teenage soldier stationed at Last Defense Academy who just woke up from an invader-induced daydream having heavily repressed something important about how he sees Takumi. He has no way to put that realization back where he found it no matter how much force he crams it into the back of his head with. But war does not need tenderness, nor does it consider youth as more than a valuable asset. First he needs to fight, and then, uh, he'll unpack all that.
Probably.
Shit.
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I Want to Understand You by skeevy_nyx
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
07 Jul 2025
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I knew it wouldn’t be easy to convince Eito—but I had taken that crucial first step. I had planted a seed of doubt in his mind over whether his lifelong grudge against humanity was worth holding onto. I’m sure it was a shock to him... but it was necessary. Sometimes you had to burn the forest floor to encourage new growth... I just had to believe in that Eito from my future who wanted to change—who wanted desperately for me to understand him.
[Major spoilers for “Last Defense Academy 2nd Scenario” and “Rebellion” routes. After losing everything, with the last shred of his strength Takumi managed to go back a third time. Armed with the knowledge of the true nature of the war they were forced to fight, and the decision he and his comrades—no, his family, all made together at the end—he’d make damn sure they all came out of this on the right side of history. This time, he’d be able to keep everyone alive—and he had a new promise to keep. The others might not understand it, but...]
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Hundred Line: Friends with Benefits Route by TheKingOfClubs (TheSilvertonguedSlacker), TheSilvertonguedSlacker
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
07 Jul 2025
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SPOILERS FOR LAST DEFENCE ACADEMY FIRST SCENARIO.
A new route emerges...
It seems that hemoanima can have another side effect if things get a little hot and heavy, and after falling from a roof, Takumi wasn't the only one having strange symptoms after being unconscious for a week.
Everyone is a little antsy, and not in the 'we're fighting a war for humanity' way, and more of a 'spring break' way. Sirei also suspiciously ran away to 'check on how the paint is drying in the defence room'. Left to their own devices, how will the warriors at Last Defence Academy cure their heated blood...? And if you've read my previous Master Detective Archive's work, you know what you're getting into.
A story where YOU can help shape the choices Takumi makes, and in time, be able to pick them yourself, but for now, help shape them.
Can you lead us to the fabled Sandwich route?
I ran out of tags, but I promise you, there's like an 80% chance you'll find what you're looking for in here, somewhere, if you make the right choices...and, y'know, I've got that far.
Also, for the sake of this story, all characters are 18 or older.
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The Hundred Line -Parallel IIIs- by BurgundyPlatypus249
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
07 Jul 2025
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"On Day 101, Day 102, and all days after..."
Takumi Sumino was a totally average teenager living in the Tokyo Residential Complex... 199 days ago. 99, for most anyone else. The fickle hand of fate would not yield, not even when time itself had. At the end of it all, enough blood wet the ground of this war-torn planet to drown in it... The task of all survivors? Hold your head up high, and keep breathing. Now veterans of war, and an insidious "Invader Hunt," can the battle-hardened Takumi and his remaining friends do just that? Across the sprawling fractal of world-splitting decisions, a ripple from just one now carries all the rest...
MAJOR ROUTE SPOILERS: Killing Game, Second Scenario, Conspiracy, Slasher, S.F., Retsnom, Box of Blessings, Cult, Coming of Age, Box of Calamity, V'ehxness, Eva, Goodbye Eito, Reset
(minor route spoilers: Serial Battles, Comedy, Multiple Eitos, Romance)
((Tags and spoiler warnings will be adjusted as needed))
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Blood, Fire, Pain, and Future by Puddingwithagun
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
06 Jul 2025
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Once, Yugamu had let himself fall into the hands of someone seeking revenge. Takumi rescued this rival he’d only met once, piecing together Yugamu's shattered hand bones and stuffing his spilled organs back into his abdomen. He couldn't find the lost eyeball, so he made Yugamu an eyepatch to cover the empty socket where a glass prosthetic now sat.
Or a time line that Takumi and Yugamu are both assassins. Story before everything in the game begins.
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The Perfect Red Flag by EldritchElizabeth
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
06 Jul 2025
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Tsubasa and Darumi do one another's makeup.
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[Spoilers for Route 0 but it doesn't follow a specific route beyond that.]
After a little experiment to figure out just how much the disorder impacts him, Eito realizes just how much is exhausts him and isolates him. A part of him grows to like Takumi, and it stays like a persistent cockroach. So he asks Takumi and Yugamu for help.
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Just for the benefits by Silent_Sparrow
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
06 Jul 2025
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In a series of tragic events, the killing game rapidly loses participants. The Sponsor introduces a new asset to boost their numbers, which turns out to be none other than Aotsuki Eito.
In the midst of blood, death and Takumi's confusing feelings for Yugamu and Eito, he finds himself left with a desperate wish: to end the killing game, save his friends and to find a reason to keep living.
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Love Taste by Diarfa, LightlySaucedKomeada
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
07 Jul 2025
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Set in the cult route, Takumi's first reward recipient his second time around was Ima Tsukumo. Takumi knew all too well what Ima had to do for him and his sister to survive. In multiple timelines Takumi learned about all the fucked up humiliating acts the young boy had to endure for money. He would always act like everything was okay, but Takumi knew it was all an act. That or Ima had truly become numb to all of the abuse he had to endure. He wanted to do something kind and soft for the teen boy.
Takumi walked over to the maid boy, wrapping his arms around Ima’s waist, "This won’t be like those other times,” he said confidently.
“How so?” Ima asked.
Takumi leaned down to kiss Ima on the cheek, whispering in his ear, "Because they didn’t love you like I do.”
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Good with his hands by Silent_Sparrow
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
06 Jul 2025
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Takumi decides to check up on Yugamu after Sirei's explanation to cheer him up.
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The Brainwashing Route by FarFromTheTree
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
06 Jul 2025
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(Frankly I don't think you should be reading Fanfics on A03 if you both care about spoilers and also have not finished the game, but just in case, general spoilers for Last Defense Academy abound)
After an accident leaves the students without a commanding officer, again, Tsubasa realizes an issue with one of the other students, and teams up with Takumi in an attempt to fix that issue. And maybe get a bit of selfish gain out of it, but they'll insist that it's mostly for the good of the team, regardless of if that's true.
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【拓歪】四叶草五千日元一片 by tsukinamikani
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
06 Jul 2025
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乐队PA 有小歪的家人 性格捏造
掺和了一点半间过场【等
OOC 你会看到跟宁次哥对战时的雏田大小姐一样的歪本来只是普通的小甜饼，但是转念一想这如果是现PA，歪又不像会去搞乐队的人，于是就有了这篇
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The Scientific Method by CrystallizedCrescent
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
05 Jul 2025
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“Sorry I couldn’t be of more help, but if I may suggest…”
He doesn’t like the look in Yugamu’s eye. Gleeful, devious; it’s the same one he always gets before saying something particularly outrageous, even by Yugamu standards. But Takumi is the one who approached him with questions, so he supposes he should hear him out. “What is it?”
“We could test it out right now. Together.” Ah. He should have known it would come to this. “Transform into our class armor, poke around in there, record our findings— treat it like any credible science experiment. There’s always the Revive-O-Matic if things go wrong.”
Takumi has a lot of questions about their class armor and the strange cavity that appears in their chests. Yugamu doesn't have answers, but what he can offer is a hands-on method of finding out.
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Kyoshika the most noble wingman by RainbowCrystal
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
05 Jul 2025
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To wingman for someone is a delicate thing. It is very hard to do so when all your life you've had the delicacy of a sledgehammer.
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No Reason But Its Glory by Umekopyon
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
05 Jul 2025
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Gaku hadn't wanted to be a nursery school teacher, really, but an excess of love kept him there regardless.
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Pain As Proof by ResonanceEnd
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
04 Jul 2025
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(Post-Killing Game Route)
The sight of Takumi visibly straining- his muscles taut like a wire pulled to its breaking point as he fought to keep his volume down was as picturesque as a homicide to Yugamu. He’s so vulnerable. It sent a tremor through Yugamu’s restless hands.
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Takumi loses a card game. Yugamu wins a human test subject.
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Split, Like So! by SomePersons_Bread_Loaf
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
05 Jul 2025
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When faced with the dilemma of choosing which academy to save when both come under attack simultaneously, Takumi decides that he would not be abandoning either one.
He came back from the future to save everyone, after all. Even if he couldn’t be everywhere at once, he’s not sparing any effort to ensure that everyone has a chance at living.
The future is already changing. He’s not going to be able to adapt to it if he doesn’t move on from making binary decisions.
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baby's first near death experience by kowaidesuka
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
04 Jul 2025
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Takumi, a mercenary new to the sellsword business, stumbles across the house of a witch in the middle of the woods.
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To the Moon: Thanks to You by NanakiBH
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
04 Jul 2025
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(SF-Mystery Route)
With Eito by my side, this time we'll make it there. To the Artificial Satellite. -
The Empire of Tesophon by CameronByseas
Fandoms: The Hundred Line -Last Defense Academy- (Video Game)
04 Jul 2025
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Following the events of the Rebellion route, Nozomi and Kamyuhn have both survived the battle against V’exhness. Everything is going well until Kamyuhn abruptly disappears the next day, causing the students to suspect each other. However, their worries are eclipsed by a force far more daunting than anyone could have imagined: An interplanetary empire known as Tesophon seeks to conquer Futurum with all its might. Left with no other options, Takumi is taken into the Empire with Eito and Nozomi, seeking to learn about their motivations and ensure the protection of his friends.