The Future Diary: Fanfiction Side Stories
Fanwriter110
  • Reads 1,100
  • Votes 13
  • Parts 7
  • Time 56m
  • Reads 1,100
  • Votes 13
  • Parts 7
  • Time 56m
Fanwriter110
Ongoing, First published Aug 01, 2017
animedeathfanficfanfictionfdfuturediarygasaigoregorymirainikkimurderpsychokillertfdthefuturediaryviolenceviolentyandereyukiyunoyunogasai
(WARNING. You must have watched all of the original anime because this can or will spoil the ending of it and the events in it)

This is just a collection of small fan fiction side stories made by myself based off of the amazing anime, The Future Diary. Some of them can take place after the events of the anime and some during the events or after. Keep in mind, my writing is definitely not the best but I'm still writing this because of my love for the anime. I will take requests and I'll continue working on this from time to time while my writing skills hopefully develops for the better.


(Original characters belong to the creators themselves of the anime and the pictures used are not made by me. This is just fan-fiction.) (Also, stories may be graphic for some.)
All Rights Reserved
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Table of contents

7 parts

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Not this type of Otome Game! (ON HOLD) by Pherfore
15 parts Ongoing Mature
As I woke up in the body of the least psychotic but still psychotic villain in the otome game entitled "Never Forgive Me, Never Forget Me"; I already imagined my very body being torn limb by limb and with each passing day, the agonizing pain of being eaten by rats, maggots, and beast were excruciatingly enough to send my whole body into shivers. This otome game is no ordinary plot-based video game marketed towards teenagers fantasising about love-no. This game was developed under the influence of traumatising the audience and making them realize that there is more to love than just a happy ending of getting together. Those sleepless nights and paranoia I experience while playing this game can never withstand what I'm feeling the moment I realize whose body I'm residing in. (P.S) All chapters that will be sooner or later be updated are gonna be unedited.
Meant To Be Yours (Yandere Zenitsu x y/n) by demonslayerfan654
12 parts Ongoing Mature
he NEEDS you A yandere story about Zenitsu sooooo yeah big trigger warning: Violence, murder, suicidal thoughts, anxiety, depression, death genocide, ect
Our Love (Yandere X Reader) by TheRealNevvy
49 parts Ongoing
This story is about my personal daydreams with my lover but with a twist, it's from my lover's pov, which Is y/n. (I ALSO MAY OR MAY NOT BE IMAGINING IT AT KENNY FROM SOUTH PARK BUT SHHH) I hope you enjoy! BY THE WAY. IF YOU GO BY OTHER PRONOUNS THAT IS OKAY! I MADE Y/N A BOY BECAUSE ITS HOW I IMAGINED IT! IF YOU GO BY SOMETHING ELSE, YOU CAN READ THIS AND REPLACE THE PRONOUNS IN YOUR HEAD! ~WARNING~ •~Blood~• •~gore~• •~descriptive violence~• •~suicide mentions? ~• YO. SO IM BACK. AFTER FOREVER. I AM SO SORRY FOR LATE UPDATES, I DELETED WATTPAD AND MY LIFE GOT BUSY WITH OTHER THINGS- I'M OH SO DEARLY SORRY IF THIS IS BAD, I WILL MOST LIKELY JUST FINISH THIS STORY OFF WITH WHAT WAS MEANT TO BE THE ENDING(S) HOPEFULLY I WILL START WRITING STORUES AGAIN -NEVVY
The One Thing I Can't Fight (Killua X OC) by Marina2319
75 parts Complete
When Usagi Ametsuchi meets Gon, Killua, Kurapika, and Leorio at the Hunter Exam, the five quickly become friends. However, they find out fast enough that Usagi's family is not one to be taken lightly; the Ametsuchi's are famous assassins, neck-and-neck with the Zoldycks and nicknamed Hell's Dolls for being so emotionless in their killing. Usagi is trying to run away from all of that, but soon becomes dead set on getting even with her sister, Sachiko. But how will she try to get revenge? And what for? What will happen when she finds out that her past is somehow intertwined with the Zoldyck family, and how will she respond to having grown feelings for one of them? ~~~ BOOK TWO IS BETTER BE SURE TO READ IT AS WELL ~~~ So, uh *awkwardly clears throat* I feel kind of... hated bUT ALSO NOT REALLY I dunno, but in case you haven't realized, part two of this story has been on hiatus since, like, almost exactly a year ago, and I have zero intention to bring it back to life. But that doesn't mean I'm gone forever, and it doesn't mean I don't appreciate everyone who reads or had read my stories - you were my first real audience, and I love you more than you'll ever realize. However, people move on, which is why I've gone and fallen in love with BNHA. Whoops. I also draw. A lot. If you want to keep up with what I'm doing now, you can find me on tumblr and Instagram under the name Havvki, so go ahead and follow me for art and anime shit! You'll get more of my Wattpad-style personality on tumblr because none of my close friends or family members follow me on there!! Yay!!!! I also plan on posting one-shot fanfictions!! Anywho, that's all, I hope you enjoy this fanfiction that I wrote when I was 13 (Im 16 now, making this cringy as hell) and have an awesome life <3 7-5-18 Marimoo/Olivia
Another: The Class of 1999 by FayeTheFab
34 parts Complete Mature
Moving schools is always difficult - the strange new faces, the unknown building, the worry of sticking out too much. But for Takeda Tsuki, her fear of a new school is sparked by something else. Something much more serious, dangerous, and murderous... Due to the events of Class 3-3 in 1972, the students 27 years later are still facing the curse brought onto them. Friends become enemies, students are dying, and someone in the class has a strong relationship with death. Anyone with a connection to the class could be affected. Nobody is safe. Can the students work together to remove the curse? Or will they turn on each other and create even more chaos? . . . •This is a fanfiction of the anime series "Another" released in 2012, with references from the series included in this story. •‎All the characters (except for one, credit given in their introduction chapter) are my own characters, and any similarities between these and any other existing characters are coincidental. •This story mentions physical abuse, and heavily involves death and killings. It also touches upon child abuse, and has LGBT+ characters. •As this story is set in Japan, when characters are introduced, they'll be done so in the Japanese way- surname first, and then their Christian name. Eg, Smith John, as opposed to John Smith. •Published June 2022 - January 2023
Forbidden Love|Sukuna x Reader by GirlWhoWrites09
36 parts Ongoing Mature
Warning!- death, blood, smut, cursing, faking a death, teen pregnancy being stalked, reader is being a slave to Sukuna, ect "Let's say, their love was- forbidden." Yuji Itadori is desperate to learn more about his parents. He only knows some things about his mother, [Name] Itadori, but he has no knowledge of his father. Read about Yuji's parents and their forbidden love story. [Name] Itadori was once a student at Jujutsu high. Ever since she came in contact with Ryomen Sukuna, she couldn't get him off her mind. She knew it was wrong, truly she did, but there was just- something about him. Every minute of the day she thought about him, scared that something was going to happen to her. I DO NOT OWN JUJUTSU KAISEN!!!!! IT BELONGS TO GEGE AKUTAMI THIS ALSO DOESNT FOLLOW THE TIMELINE OF JJK!!!!
The Last Tankery Match... by Yerchick
27 parts Complete Mature
(FINISHED) After a successful victory from Ooarai Girls Academy during an elimination match featuring all the mentioned Schools from the show, an evil force invades and leaves all the girls to a terrible fate. (chapter 3 is the best:)) Please excuse my grammar and writing skills, and this writing will be graphic (gore, violence, favourite characters dying, etc). Basically everyone is gonna die(probably) and there is smut in this, don't worry it's not mandatory to read
𝙈𝙞𝙨𝙨𝙞𝙤𝙣: 𝘉𝘰𝘯𝘨𝘰𝘶 𝘚𝘵𝘳𝘢𝘺 𝘉𝘪𝘵𝘤𝘩 𝘐𝘴𝘦𝘬𝘢𝘪 | ✔ by SugaKiDevraani
19 parts Complete
Yo, Chuuya ff. Mission: Bungou stray isekaied bitch. ✧･ﾟ: *✧･ﾟ:* "What the hell you're doing!? At least let me go out first!" "Wait a second! You thought I changing in front of you?!" I gasped. "You pervert!" 𝘊𝘩𝘶𝘶𝘺𝘢 𝘹 𝘳𝘦𝘢𝘥𝘦𝘳 ⚠🚨Side Notes🚨⚠ ※ I did not follow the manga and anime sequencing. So no spoilers. ※ Chuuya will be a little out of character, as we all know love is not his focus neither interest. ※ Looks like y/n is stuck in an isekai situation. ⚠️🔆Disclaimer! ⚠️ I do not own any of the characters from bsd but All the ideas belongs to me in this book as well as they are inspired by many other genre of stories. If my work matches with yours please contact me. We will resolve this issue together. Thank you. Started: 22 November, 2022 Ended: 16th July, 2024
Our Bond || Killugon || A Duology by AshAndGohsChild
29 parts Complete
A Killugon Short Story Duology. Will be re-written soon. Book 1- Our Bond: [COMPLETE] Two best friends. They have always done everything together, traveling everywhere together, never leaving the other's side. They shared a bond so deep, that maybe, just maybe, it could turn into something more. Book 2- Our Bond 2: [COMPLETE] A few years after they got married, Gon and Killua were living life as it is, together. And they were happy. But one day, they found a little girl on the curb, who ran away from her abusive parents. Gon and Killua took her in, until they found her a new home. ----- I was initially going to make this a trilogy, but never got around to making it. I lost motivation. Realistically, this story is not my best work, but at the time I wrote this, I was pretty happy with it. I had a lot of fun. Thank you so much for my friend for giving me this idea! Credits to @somethingreallyedgy for coming up with the topic, and @sorerugola and @Balletgirl_52 for supporting me! Disclaimer: I do not own any of the characters in this story-this is a fanfiction; all credits to the original creator, Togashi. The plot is non-canonical, and most characters' power scales will be brought down significantly, in order to add plot. I hope you enjoy this story! ---------- #3 in Killugon 11/12/24 #5 in gonxkillua 11/12/24 #11 in killuaxgon 11/12/24
Wish Granted | Yandere kny x Fem! Reader by kayeesey
41 parts Complete Mature
Discontinued. "If only I knew what would happen, I would've stop my past self..." Y/n told to herself... in a nervous tone. "Y/n-chan~ why are you running away from me? Don't you love me?" Someone yelled with lust. Y/n's eye widened and continued to run. I'm a new writer so I still don't know how to make stories like this but I will try my best. Warning! Murder Obsession Harassments Swear words Violence • All kny characters doesn't belong to me, they respectfully belong to Koyoharu Gotouge. •I only own Y/n the main protagonist and her bestfriend. •It can may be cringe because I'm a new writer. •Will update everytime I get motivation. •I accept hate comments. •You may and can correct my grammar so I can learn from them.
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Slide 1 of 10
Not this type of Otome Game! (ON HOLD) cover
Meant To Be Yours (Yandere Zenitsu x y/n) cover
Our Love (Yandere X Reader) cover
The One Thing I Can't Fight (Killua X OC) cover
Another: The Class of 1999 cover
Forbidden Love|Sukuna x Reader cover
The Last Tankery Match... cover
𝙈𝙞𝙨𝙨𝙞𝙤𝙣: 𝘉𝘰𝘯𝘨𝘰𝘶 𝘚𝘵𝘳𝘢𝘺 𝘉𝘪𝘵𝘤𝘩 𝘐𝘴𝘦𝘬𝘢𝘪 | ✔ cover
Our Bond || Killugon || A Duology cover
Wish Granted | Yandere kny x Fem! Reader cover

Not this type of Otome Game! (ON HOLD)

15 parts Ongoing Mature

As I woke up in the body of the least psychotic but still psychotic villain in the otome game entitled "Never Forgive Me, Never Forget Me"; I already imagined my very body being torn limb by limb and with each passing day, the agonizing pain of being eaten by rats, maggots, and beast were excruciatingly enough to send my whole body into shivers. This otome game is no ordinary plot-based video game marketed towards teenagers fantasising about love-no. This game was developed under the influence of traumatising the audience and making them realize that there is more to love than just a happy ending of getting together. Those sleepless nights and paranoia I experience while playing this game can never withstand what I'm feeling the moment I realize whose body I'm residing in. (P.S) All chapters that will be sooner or later be updated are gonna be unedited.

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