Undercover Missions FanFiction

Life is the mission

Life is the mission

F/F
Multi
G
Updated
11.04.2025
Fandom
Marvel Cinematic Universe
Characters
Original Characters, Natasha Romanov (Marvel), Clint Barton, Nick Fury, Maria Hill/Natasha Romanov, Maria Hill
Tags
Slow Burn Not Canon Compliant How Do I Tag SHIELD Undercover Missions Natasha Romanov Needs a Hug (Marvel) Natasha Romanov Needs Therapy (Marvel) eventual blackhill undercover in suburbia pre-avengers learning to live
Natalia Romanova has joined SHIELD 3 years ago, things have changed and gotten better but in a way they haven’t - she has simply traded one prison for another gilded one. She is and has always been a soldier, she doesn’t know how to be anything else....
Forget-Me-Not

Forget-Me-Not

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Hermione Granger/Draco Malfoy, Blaise Zabini, Theodore Nott, Daphne Greengrass
Tags
Smut Slow Burn Character Death Explicit Sexual Content Drama Romance Enemies to Lovers Death Eater Draco Malfoy BAMF Hermione Granger Dark Magic Plot Twists Action & Romance
In which Hermione must kill Voldemort's Right Hand Man, a wizard no one has ever seen but has encountered on their death day. A ghost that she intends to eliminate in order to save her loved ones, but somehow, gets stopped along the way.
the ballad of alice fortescue

the ballad of alice fortescue

F/F
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Remus Lupin, James Potter, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Neville Longbottom, Alastor "Mad-Eye" Moody, Molly Weasley, Narcissa Black Malfoy, Frank Longbottom,
Tags
Mutual Pining Canon-Typical Violence Secret Relationship Complicated Relationships Canonical Character Death Canon Compliant Period-Typical Homophobia War First Wizarding War with Voldemort (Harry Potter) Lucius Malfoy Being an Asshole Albus Dumbledore Bashing Toxic Relationships
For some, there's a vague memory that there was once an entertainer in the order.The Snake Charmer, they called her.She's all but forgotten now.By all, but one.
Wasteland, baby!

Wasteland, baby!

Multi
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling The Last of Us (TV)
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Regulus Black & Sirius Black, Evan Rosier, Barty Crouch Jr., Walburga Black,
Tags
Angst Alternate Universe - Canon Divergence Other Additional Tags to Be Added Murder Blood and Gore Hurt/Comfort Minor Character Death Zombies Apocalypse Marauders Alternate Universe - Muggle Regulus Black is a Little Shit
Most people imagine that an apocalypse will never happen in their lifetime. Most people would be wrong.James Potter and Remus Lupin are surviving. Things are quiet for the first time in a while. That is until three people enter stage right, and chang...
The Black Dahlia

The Black Dahlia

F/M
Multi
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Remus Lupin, Sirius Black, Draco Malfoy, Lucius Malfoy, Fred Weasley, George Weasley, Narcissa Black Malfoy, Bellatrix Black Lestrange, Cedric Diggory, Daphne Greengrass, Fred Weasley/Original Female Character(s), Original Malfoy Characters (Harry Potter),
Tags
Mutual Pining Enemies to Friends to Lovers Grief/Mourning Canonical Character Death Slow To Update Canon Related Undercover Missions Potions Draco Malfoy Redemption Hogwarts Prefects' Bathroom Protective Cedric Diggory Hogwarts Prefects
She is pride. She is ambition. She is cunning. She is a Slytherin.They said she was a hero, but she was not. They told her she saved the world, but she did not. It was never her intention to be a spy, to scheme in the shadows. Reporters liked to writ...
sycophantic

sycophantic

F/F
F/M
M/M
G
Updated
12.04.2025
Fandom
僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
Characters
Midoriya Izuku, Todoroki Shouto, Yagi Toshinori | All Might, Takami Keigo | Hawks, Dabi | Todoroki Touya, Shigaraki Tomura | Shimura Tenko, Bubaigawara Jin | Twice, Bakugou Katsuki, Aizawa Shouta | Eraserhead, League of Villains (My Hero Academia), Class 1-A (My Hero Academia), Aizawa Shouta | Eraserhead/Yamada Hizashi | Present Mic,
Tags
Tension Angst Slow Burn Hurt/Comfort Falling In Love Enemies to Lovers So much angst Villains Pro Hero Bakugou Katsuki Undercover Missions League of Villains as Family (My Hero Academia) Foreshadowing
Sycophantic: to behave in a way to gain advantage.Denouement is a rising villain, leading a new collective of villains. Noticed by the top ten heroes, villainy and heroism become interlinked, when Katsuki Bakugo is sent undercover to investigate. Izu...
I need you (Like I need to breathe)

I need you (Like I need to breathe)

M/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter
Tags
Alternate Universe - Canon Divergence Angst with a Happy Ending Hurt/Comfort Explicit Sexual Content Cuddling & Snuggling Minor Injuries First Wizarding War with Voldemort (Harry Potter) Reunions Undercover Missions Presumed Dead but the angst is somewhat light we like to defenestrate canon
And he can live with them hating him, grieving him, if he doesn’t have to grieve them.It’s selfish, oh it’s so selfish, but he doesn’t want to grieve themorRemus throws caution to the winds, and trusts his family.
Serpentarium

Serpentarium

F/M
Multi
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Severus Snape, Draco Malfoy, Neville Longbottom, Fred Weasley, George Weasley, Albus Dumbledore, Harry Potter/Ginny Weasley, Hermione Granger/Ron Weasley, Original Female Character(s) of Color, Original Male Character(s) of Color, Original Female Human Character(s), Angelina Johnson/Fred Weasley,
Tags
Friends to Lovers Original Character(s) Fluff and Angst Secret Relationship Grief/Mourning Original Character-centric Forbidden Love Enemies to Friends Adventure & Romance Manipulative Albus Dumbledore Good Fred Weasley & George Weasley Christmas Fluff
Lucy Shafiq has been given a mission; a mantle to carry in honor of her gone but not forgotten parents. But will she be able to balance her mission and her budding romance with her childhood friend? Or will she begin to lose herself in her undercover...
*Hello, Planet.

*Hello, Planet.

F/F
F/M
G
Updated
12.04.2025
Fandom
Vocaloid CeVIO UTAU
Characters
Other Relationship Tags to Be Added, Hatsune Miku, Kagamine Rin, Kaito (Vocaloid), Kagamine Len, Megurine Luka, Meiko (Vocaloid), Kamui Gakupo, Gumi (Vocaloid), MAYU (Vocaloid), Utatane Piko, Fukase (Vocaloid),
Tags
Flirting Family Swearing Knives I Wrote This Instead of Sleeping Weapons Alternate Universe Underage Drinking Underage Smoking Assassins & Hitmen Dead People Assassination
All Vocaloids are born with a power. What kind of power? Well it could be body part substitution, wallcrawling, invulnerability, faunal communication, anything that is considered 'supernatural' to us humans.Len Kagamine is an assassin working for a c...
never quite free

never quite free

F/F
Gen
M/M
G
Updated
13.04.2025
Fandom
The 100 (TV)
Characters
Clarke Griffin, Lexa (The 100), Bellamy Blake, John Murphy (The 100), Harper McIntyre, Niylah (The 100), Monty Green, Jasper Jordan, Emori (The 100), Raven Reyes, Nathan Miller, Emori/John Murphy (The 100),
Tags
Hurt/Comfort Torture Past Torture Undercover Missions Hot Chocolate Yikes shots fired
“I need your help,” he says. Bellamy is good at things like this; pulling people in: he knows how they fit together, how to make them work cooperatively. “I have a tattoo,” he half-explains, not really wanting to get into it.“I’m not doing shit for L...
A Life With You

A Life With You

F/F
Other
G
Updated
13.04.2025
Fandom
Daredevil (TV) Agents of S.H.I.E.L.D. (TV)
Characters
Original Characters, Clint Barton, Matt Murdock, Franklin "Foggy" Nelson, Nick Fury, Skye | Daisy Johnson, Lance Hunter, Bobbi Morse, Melinda May, Darcy Lewis, Maria Hill/Natasha Romanov, Clint Barton & Natasha Romanov,
Tags
Angst Other Additional Tags to Be Added Fluff and Humor First Kiss First Dates Slow Build First Meetings Angst and Humor War Heist Overdosing Prison
"You're a wonder; how bright you shine; A flickered candle in a short lifetime. A secret dreamer that never shows, if no one sees you then nobody knows." -Josh Groban Natasha Romanov is a lowly mechanic on one of the largest Pirate ships in the void,...