Reliving your childhood years and into teens is one thing in your average isekai story, having it happen in the KND world is a different matter altogether. Very first Fanfic I made prior to my other fics. Posted on Spacebattles, now crossposting it over here.

Meet the Favorite Fives! Steven, Linka, Luke, Crank, and Jennifer are five children who go on crazy adventures with each other. Whether it will be fighting off foes, completing tasks, or reclaiming valuable possessions, these kids go through some new and old territories by exploring lands that can be a challenge for them to get through. (Characters based on KND)

Nigel discovers he has the same powers as Father, his archenemy. Because he doesn't want anyone to know about this, he goes in secret asking the man for help. He refuses but in their altercation Nigel accidentally turns Father into a child. Now they both need each other to gain what they want. Rated M for chapter 9. Amazing fic cover done by FanFlyingFox.

AUTHOR'S NOTE: So after a long while of internal debating, I finally decided to make a sad alternate version where Cree actually does end up dying. READ AT YOUR OWN RISK!

The Lunar Base of the Kids Next Door receives an encrypted message from Sector XW45-M. Numbuh 362 and 86 go to investigate but are interrupted by a nebulous storm. Chad, former Numbuh 274, manages to pass through and discovers an asteroid, which has an old KND ship. Inside, they find an agent still alive but in hibernation, possibly from the first generation of KND.

[COMPLETE] When a rogue operative threatens to reveal the GKND, Nigel is sent back down to stop them by any means necessary. But people have changed and the boy is tangled in a web of love and betrayal as he finds out just who he has been assigned to hunt down.

ENGLISH VERSION. Wally decides that he will finally tell his childhood friend Nigel about his feelings. When he finds out that he's dating someone else, it doesn't hurt anymore, because without realizing it, formed a very strong bond with the troublesome new guy, Patton Drilovsky. That boy who showed him what it is to feel true love.

Wallabee Beetles is a ten-year-old delinquent, but then he gets recruited into the Kids Next Door on a big mission, stealing a cake.

Numbuh 451, otherwise known as Ava "Firecracker" Baros, was the Kids Next Door's premier explosive expert. If it existed, then Numbuh 451 knew not only how to blow it up, but often times, how to turn it into an explosive as well. But there is more to her than what the surfaces shows. She's known many of the KND's finest heroes and fallen operatives. This is her story.

Numbuh Vine, AKA Lizzie, receives her first Galactic mission to disguise herself as a regular human girl so she can test the loyalty of a certain member of the Kids Next Door. Trials and tribulations allow Lizzie to take extreme measures to complete her mission, which leads to her downfall and regret in what she has done when it is too late.

Inspection day is here, and Wally is sent to Sector EL, a British sector composed of four girls who delight in elegant activities. They mistake him for a girl and put him in their makeover machine, then teach him their ideals. However, he notices something is afoot, and an old foe is coming to exact her revenge! Can Wally survive this and save the day before it's too late?

Wally decide que por fin le dirá de sus sentimientos a su amigo de la infancia Nigel. Cuando descubre que él está saliendo con alguien más, ya no duele, porque sin darse cuenta formó un lazo muy fuerte con el chico nuevo problemático, Patton Drilovsky. Aquel chico que le mostró que es sentir amor de verdad.

A story rewrite. Takes place with the Kids Next Door as teens. Fanny was known for being a lot of things. She was The Fan, leader of the Teen Ninjas. Tough, brash, independent, highly respected, and most importantly, cool. She had a reputation to keep up with. And one boy just might destroy it.

Numbuh 362 and Numbuh 86 are having a slow day at the moon base and decide to invite a special visitor over to entertain them. Numbuh 362xNumbuh 1, Numbuh 86xNumbuh1, Nigel Uno x Rachel McKenzie, Nigel Uno x Fanny Fulbright

WARNING: SOME CONTENT IN THIS FIC MAY BE DISTRESSING TO SOME VIEWERS. IF YOU DON'T LIKE WHAT YOU ARE READING, PLEASE GO SOMEWHERE ELSE. THANK YOU! This is basically KND, but it's an AU where my character, Delilah exists, and how she came to live in Gallagher County. Co-written by giggly-gamer on Discord

It's Valentine's Day, and Wally finally has a chance to confess his love for Kuki with some help. Based on the Hoops and Yoyo I love you E-card.

Really Overpowered foe. Need Incredible Numbuhs A New Villain arrives on the scene. Has sector V finally met their match? Please read and review!

Living as a single mother can be a challenge especially with their child away and running business. Katherine wasnt going to let that stop her from getting know what going on with the children and adults fighting nonstop. She also met a man with his interesting children who seem to catch her interest.

In this story, Aaron's a superpowered teenager who's...not from around here. When trying to do what's right, his actions get the attention of the Kids Next Door. They might not trust him, but they'll have to if it means saving more than every kid's childhood from a bigger threat than Father. (Takes place after Operation: T.A.P.I.O.C.A.) Tell what you guys think! I hope you like it!

My genderbent version of season 1 of the show. I hope you enjoy! Apologies for the delay! I'll try to post new chapters as soon as I can!

After their long battle, The consequence of the peace treaty between the KND & TND, Dennis and his old teammates failed to recover stone papers due to a falling out. Numbuh 0.77 took matters into his own hands and then decommissioned order by supreme leader Numbuh 362. With his old squad gone can his new teammates help or will they fail or will they

I have rediscovered my love of KND and decided to write a story for it. Numbuh 1 gets called up to the boss's office and there is a pleasant surprise waiting for him... Numbuh 1xNumbuh362, Nigel Uno x Rachel McKenzie oneshot.

Five years ago, Supreme Leader Numbuh 100 failed to uncover a conspiracy that resulted in the wrongful decommissionings of several operatives. Now, it's up to the teenagers to pick up where the KND left off, uncovering secrets that could destroy themselves and each other. But, maybe, they might just find out who the true enemy's been all along.

Guero emprende un viaje como ninguno que haya visto.

Between "Operation:C.A.R.A.M.E.L." and "Operation:M.O.O.N."After leaning that Sector "V" is taking some time off from fighting against those evil adults and teenagers, Kuki wishes that she never join the Kids-Next-Door after she made those minor accidents on her best friends/teammates and her Guardian Angel whom that she can take her to a world to see what will be like she didn't.