the crossovers we never knew we needed
9 stories
ETERNITY // genimp x owari no seraph crossover by -MATSUYURI
-MATSUYURI
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    Parts 11
"you are an enemy of eternity. your vision shall be pressed on the forehead of this statue, to show that i have killed even one of the strongest clans." various × fem!reader ▬▬▬ rare updates
𝐆𝐥𝐮𝐭𝐭𝐨𝐧𝐨𝐮𝐬 𝐕𝐞𝐬𝐬𝐞𝐥 [ 𝐣𝐮𝐣𝐮𝐭𝐬𝐮 𝐤𝐚𝐢𝐬𝐞𝐧 ] by _DIBREED
_DIBREED
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    Parts 14
▀▄▀▄ 𝙹𝚞𝚓𝚞𝚝𝚜𝚞 𝙺𝚊𝚒𝚜𝚎𝚗 ▄▀▄▀ "𝙷𝚎 𝚑𝚊𝚜 𝚊 𝚝𝚠𝚒𝚗 𝚋𝚛𝚘𝚝𝚑𝚎𝚛?!" "𝚢𝚎𝚜...?" "𝚑𝚘𝚠 𝚌𝚘𝚞𝚕𝚍 𝚢𝚘𝚞 𝚋𝚎 𝚝𝚑𝚊𝚝 𝚍𝚞𝚖𝚋?!" "𝙸'𝚖 𝚗𝚘𝚝." "𝙎𝙝𝙪𝙩 𝙪𝙥." 𝙩𝙝𝙞𝙨 𝙞𝙨 𝙨𝙤𝙢𝙚𝙬𝙝𝙖𝙩 𝙖 𝙛𝙚𝙢𝙖𝙡𝙚 𝙗𝙚𝙚𝙡𝙯𝙚𝙗𝙪𝙗!𝙧𝙚𝙖𝙙𝙚𝙧. !𝙳𝚒𝚜𝚌𝚕𝚊𝚒𝚖𝚎𝚛! 𝙸 𝚍𝚘 𝚗𝚘𝚝 𝚘𝚠𝚗 𝚓𝚞𝚓𝚞𝚝𝚜𝚞 𝚔𝚊𝚒𝚜𝚎𝚗 𝚊𝚗𝚍 𝚋𝚎𝚎𝚕𝚣𝚎𝚋𝚞𝚋, 𝚝𝚑𝚎 𝚜𝚑𝚘𝚠 𝚊𝚗𝚍 𝚌𝚑𝚊𝚛𝚊𝚌𝚝𝚎𝚛 𝚛𝚒𝚐𝚑𝚝𝚏𝚞𝚕𝚕𝚢 𝚋𝚎𝚕𝚘𝚗𝚐𝚜 𝚝𝚘 𝙶𝚎𝚐𝚎 𝙰𝚔𝚞𝚝𝚊𝚖𝚒 𝚊𝚗𝚍 𝙽𝚃𝚃 𝚂𝚘𝚕𝚖𝚊𝚛𝚎 𝙲𝚘𝚛𝚙. 𝙰𝚗𝚢 𝚊𝚛𝚝/𝚘𝚌 𝚙𝚛𝚎𝚜𝚎𝚗𝚝𝚎𝚍 𝚒𝚗 𝚝𝚑𝚒𝚜 𝚜𝚝𝚘𝚛𝚢 𝚠𝚒𝚕𝚕 𝚋𝚎𝚕𝚘𝚗𝚐 𝚝𝚘 𝚝𝚑𝚎𝚒𝚛 𝚛𝚒𝚐𝚑𝚝𝚏𝚞𝚕 𝚘𝚠𝚗𝚎𝚛𝚜 𝚞𝚗𝚕𝚎𝚜𝚜 𝚜𝚊𝚒𝚍 𝚘𝚝𝚑𝚎𝚛𝚠𝚒𝚜𝚎. 𝚘𝚗𝚕𝚢 𝚢/𝚗, 𝚝𝚑𝚎 𝚝𝚠𝚒𝚗 𝚛𝚎𝚙𝚛𝚎𝚜𝚎𝚗𝚝𝚎𝚍 𝚊𝚗𝚍 𝚝𝚑𝚎 𝚏𝚘𝚕𝚕𝚘𝚠𝚒𝚗𝚐 𝚙𝚕𝚘𝚝 𝚒𝚜 𝚖𝚒𝚗𝚎.
A Waterbending Quirk by dragonfire-217
dragonfire-217
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    Parts 106
A waterbender in a strange land. Katara had heard that statement before, but nothing could prepare her for what she got herself into. If only there was a place for her to learn about this new world, and people to help her... oh wait, there is! A My Hero Academia/ Avatar the last airbender crossover also on fanfiction and AO3 I do not own My hero academia or Avatar the last airbender. all rights belong to the original creators.
𝙆𝘼𝙍𝘼𝙎𝙐𝙉𝙊'𝙎 𝙋𝙎𝙔𝘾𝙃𝙄𝘾 | haikyuu x saiki k by soapiethesoap
soapiethesoap
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    Parts 26
❝ 𝙜𝙤𝙤𝙙 𝙜𝙧𝙞𝙚𝙛, 𝙤𝙧𝙙𝙞𝙣𝙖𝙧𝙮 𝙥𝙚𝙤𝙥𝙡𝙚 𝙖𝙧𝙚 𝙨𝙪𝙘𝙝 𝙖 𝙥𝙖𝙞𝙣. ❞ ▀▄▀▄▀▄ ▀▄▀▄▀▄ ▀▄▀▄▀▄ ▀▄▀▄▀▄ ▀▄▀▄▀▄ ━━━━━━━━ ⌜ 𝒮.𝐘𝐍𝐎𝐏𝐒𝐈𝐒 ⌝ 𝗜𝗡 𝗪𝗛𝗜𝗖𝗛 a coffee jelly loving psychic is transfered into karasuno high and catches the attention of the boys' volleyball club. ▀▄▀▄▀▄ ▀▄▀▄▀▄ ▀▄▀▄▀▄ ▀▄▀▄▀▄ ▀▄▀▄▀▄ [ haikyuu x saiki kusuo ] highest rankings-#1 in kageyama #2 in psychic #4 in crossover #2 in sugawara #12 in saiki #100 in haikyuu ! NEW UPDATES INCOMING AS OF DECEMBER 2025 ! 【 !!𝐃𝐈𝐒𝐂𝐋𝐀𝐈𝐌𝐄𝐑!! 】 𝗰𝗼𝗽𝘆𝗿𝗶𝗴𝗵𝘁 © 𝘀𝗼𝗮𝗽𝗶𝗲𝘁𝗵𝗲𝘀𝗼𝗮𝗽 𝟮𝟬𝟮𝟱 𝗵𝗮𝗶𝗸𝘆𝘂𝘂!! 𝗯𝘆 𝗳𝘂𝗿𝘂𝗱𝗮𝘁𝗲 𝗵𝗮𝗿𝘂𝗶𝗰𝗵𝗶 𝘁𝗵𝗲 𝗱𝗶𝘀𝗮𝘀𝘁𝗿𝗼𝘂𝘀 𝗹𝗶𝗳𝗲 𝗼𝗳 𝘀𝗮𝗶𝗸𝗶 𝗸 𝗯𝘆 𝘀𝗵𝘂̄𝗶𝗰𝗵𝗶 𝗮𝘀𝗼̄
hard times [harry potter] by madeline-eve
madeline-eve
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    Parts 18
you hit me with lightning! maybe i'll come alive [riordan-verse x harry potter] [fem!oc x ??]
GENESIS → PJO/HP by aur1grace
aur1grace
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    Parts 32
Cordelia had always known that she was different from other people, in a non self-absorbed way. But when her father drops her off at a camp for the children of the gods, she knows her life will change. Whether that's for worse or for good is still up for debate. {Philosopher's Stone - Deathly Hallows} {Lightning Thief - Blood of Olympus}
Wrong Number Kid by sundewthenaiad
sundewthenaiad
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    Parts 35
What happens when Nico Di Angelo accidentally texts Tony Stark? ~~~ Be prepared for hilarious drama, very weird author's notes, and lots of fanart and memes. There are also a few random chapters at the end of this that are basically one-shots related to the story. ~~~ DISCLAIMER: I am not Rick Riordan nor Stan Lee, which means (unfortunately) I do not own Heroes of Olympus or the Avengers. ~~~ Btw, this has Solangelo in it, so if you don't ship it, don't read this. ~~~ Why did it take me thirty minutes to come up with that? ^ ~~~ (Completed May 17, 2020)
Monster: AOTx"Mute" Reader [Cover By: @sushimisfit] by mocha_macchi
mocha_macchi
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    Parts 81
You lost your voice, and with it, the ease of fitting in. In a cruel world where having a voice matters, gives something others can remember you by. Silence makes you an afterthought to those who aren't interested--pitied, judged, overlooked. But there's power in being unseen. No one suspects the quiet one. No one asks too many questions. And sometimes, the best secrets are kept by those who can't speak them aloud. But most secrets can stay buried forever... Disclaimer: Though the references are there, you are not completely an AOT version of Nezuko!!! Also I do not own the Attack on Titan franchise and they belong to their rightful owners. Also, this book contains major spoilers to the AOT Franchise; DON'T read if you don't want spoilers.