Fosterchild4
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Recent works
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Summary
If you’ve read chapter 8 of “If You Want Something Done Right”, then you should recognize this story with Kai Meiko! I figured if I was going to have more than 3 short stories about her, I might as well give it its own work.
For everyone else, this is a collection of short stories about an OC named Kai Meiko. A girl who has seen demons for as long as she could remember, but didn’t meet anyone who knew what they were until halfway through her first year at True Cross Academy, when she stumbles upon the existence of exorcists and the Cram School where they train. It’s certainly a step up from a misdiagnosis as schizophrenic, even with the ridiculous amount of drama her classmates have going on.
Series
- Part 3 of Not Just A One Shot
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The Familiar’s Pact by Fosterchild4, tmobilegangster
Fandoms: Ao no Exorcist | Blue Exorcist
16 Jul 2024
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When a Tamer claims their familiar, they make a Pact that marks that demon as an ally of the True Cross and prevents other exorcists from killing them as long as the Pact stands. Shiro always said that if Rin became a demon, he would take him as his familiar.
Rin was unsealed, and Shiro wasn’t there. Yukio had to step in.
Series
- Part 2 of Not Just A One Shot
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Avatar Fan Theories by Fosterchild4
Fandoms: Avatar: The Last Airbender, Avatar: Legend of Korra, Chronicles of The Avatars
25 Feb 2024
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Summary
Several years ago I started making some theories about bending. It eventually turned into 15ish pages of Avatar analysis. I thought some fellow nerds might appreciate it. If anyone has their own ideas, I’d love to hear them!
Ideas for various Avatar crossovers included, if anyone needed some world building.
Spoiler Alert if you haven’t read Chronicles of the Avatars
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If You Want Something Done Right by Fosterchild4
Fandoms: Danny Phantom, Batman - All Media Types, Ao no Exorcist | Blue Exorcist, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Avatar: The Last Airbender
04 Jan 2024
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You know when you try to convince another author to write a particular prompt but fail, and now you have the idea stuck in your head, but nowhere to read it? I’ve decided that if I want to read them I’ll have to starts writing the one shots myself.
1- Jazz Fenton and Stephanie Brown are college roommates
2- Rin is Yukio’s familiar. NOT incest, just gremlin twins.
3- Izuku’s big sister runs the LOV and broke into the USJ for sibling bonding
4- drawings
5- Roomates part 2
6- Everything changed when the Water Tribes attacked
7- Blue Exorcist OC who just found that she is NOT schizophrenic. Those demons are real.
8- Demons part 2
9- Sally Jackson Mamma Mia au
10- Demons part 3Series
- Part 1 of Not Just A One Shot
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Juno’s Reflections by Fosterchild4
Fandoms: Avatar: The Last Airbender, Batman - All Media Types, Fairy Tail, Fullmetal Alchemist - All Media Types
11 Mar 2023
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Juno alway knew that being the Avatar meant making sacrifices. Putting the world’s need above her own, even if it meant never living up to the ideals she’d learned as a nun. But she never expected to change this much. To give up the very world she was sworn to protect.
None of a dozen Juno’s could have imagined this.
Seekenpalmeres wrote an Avatar x Naruto crossover called “Bend, not Break.” The beginning of that story implies that there are a dozen other versions of their OC, Avatar Juno, scattered throughout the multiverse. Since they don’t want to try and write another dozen stories, they gave the readers blanket permission to use Juno in our own crossovers.
Recent series
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Not Just A One Shot by Fosterchild4, tmobilegangster
Fandom Ao no Exorcist | Blue Exorcist, Avatar: The Last Airbender, Batman - All Media Types, Danny Phantom, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
31 Jan 2026
- Words:
- 32,507
- Works:
- 3
- Bookmarks:
- 6
Recent bookmarks
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Summary
What if another Grimm had come to Portland earlier in the series? Starting Late in season 2, these fics will tell the story about how Sloane Larson, a born and bred Grimm, comes to Portland and how her presence will eventually change a lot of events of the story. Sloane is a rough and ready hunter, with little qualms about killing wesen. But is she as cold-hearted as she tries to appear? Nick wonders and works to try and bring her around with the other's help. What will develop from there?
- Words:
- 51,015
- Works:
- 1
- Bookmarks:
- 42
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Summary
Dick, walking into a room: Hey demons! It's me, ya boi.
Jason: I swear to hell, Dick, if you say that one more time I'm going to lose it.-----
A house for my fics in the demon AU.
I thought this was going to be a single one-shot... It's not.
The stories are ordered chronologically (but not necessarily written like that), and the lore builds between stories.
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Characters (So Far)Bruce- Human (Head of the Wayne Pack)
Alfred- Human
Dick- Human
Jason- Incubus (Heart of the Wayne Pack)
Tim- Incubus
Damian- Luciferean
Cass- Wraith
Steph- Lesser VeparEveryone else, well I guess you're gonna see.
- Words:
- 157,247
- Works:
- 19
- Bookmarks:
- 2,221
Bookmarked by Fosterchild4
25 May 2025
Bookmarker's Collections:
Bookmarker's Notes
Unfortunately never finished but all the demonic worldbuilding is so cool and I am a sucker for platonic cuddles
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Summary
Mid-Season-One Zuko is held for ransom by Chief Hakoda. Ozai's replies to the Water Tribe's demands are A+ Parenting. Hakoda is… deeply concerned, for this son that isn't his, and who might be safer among enemies than with his own father.
Podfic and translations in Dutch, German, Hungarian, Russian, Spanish, and Ukrainian now available! See chapter one author notes for links.
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crossed claws and crossed hearts by lettuce_mouth
Fandom Batman (Comics), Batman - All Media Types, DCU, Marvel, Marvel Cinematic Universe, The Avengers (Marvel) - All Media Types
01 Mar 2025
Summary
Varyingly connected fics featuring demonic!batfam, inspired by SalParadiseLost's Demon AU.
- Words:
- 51,113
- Works:
- 4
- Bookmarks:
- 308
Bookmarked by Fosterchild4
25 May 2025
Bookmarker's Collections:
Bookmarker's Notes
THE DEMONS AND THE DC/MARVEL AND THE SCARY BATS AND I LOVE THIS SO MUCH EVEN IF IT WAS NEVER FINISHED BUT AT LEAST AUTHOR WAS NICE ENOUGH TO POST THE OUTLINE!
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'Cause you mean more than anything (YOTP) by LovesFrogs
Fandom Batman - All Media Types, DCU, DCU (Comics)
30 Nov 2024
Summary
My fills for the Year of the (Platonic) OTP 2023. 12 connected oneshots (plus several bonus fics/interludes inspired by my comments section) in a universe where the Justice League is convinced that Batman is dating his "Partner" Robin.
NOTE: This is not a Batman/Robin series nor will it become so in the future.
Attempting to update on the 1st or 2nd of each month for 2023.
Main arc complete! Bonus updates continue in the final fic.
- Words:
- 55,306
- Works:
- 18
- Bookmarks:
- 1,945
Bookmarked by Fosterchild4
25 May 2025
Bookmarker's Collections:
Bookmarker's Notes
Pre- “Justice League meets Batfam” shenanigans. Training B to always call Robin his “partner” bites him in the butt when JL gossip runs wild, but the Robins find it hilarious.