1(Multifandom)

This idea has probably been used but I may have not found it(if you know any fic like this, please send me the link to it).

So, I love time travel fics and see how each character solves the problems, evolves and falls in love but sometimes it gets tiring as in some fandoms it can be a bit repetitive how people go about this(and yes, I include myself and all the time travel fics I have written...even if most are in my wips and may never leave them xD)

What I am saying is that I want a time travel fic that happens after the world was saved and a group of characters find themselves bored or in the mood to mess up with someone and decide to go to the past and mess up with everyone while also taking care of the threats they had in the past.

Here are some examples:

Miraculous Ladybug- Around the time they are all adults, Adrien's class in a reunion talk about how they could have messed and pranked so many people in the past if they knew all the things they did, it is as Chloe mentions that it would be fun if they went back in time and dealt with Hawkmoth by pranking him before taking the butterfly and peacock' miraculous from him(yes, Adrien knows Hawkmoth was his father...and so does the whole class even if the rest of the world doesn't) that Marinette says that maybe the miraculous could help them as it would be better for them if they had dealt with Hawkmoth sooner. So, with the miraculous permission, the whole class goes back to the beginning of the year Adrien joins their class and starts messing with everyone: Marinette, Alya and Chloe who arrive with their hands linked, an Adrien that flirts with the boys in the class, Nathaniel who is seen hitting his classmates in the head very often after they say something others don't hear, Kim trying to imitate Chloe's behaviour from before but ends up laughing, etc(just stupid things that for some made no difference but for those who knew them before or saw them, it would be out of character. Of course that the ships could be whatever the person writing prefers together with if Zoe and Kagami join the class sooner or later, even if they will make Luka be also part of the class or if Lila will be like canon(I would prefer if the whole class was friends and close unlike canon but...I will accept if they aren't that close but still have all grown up and made up but as you can see from above, I have a huge soft spot for Chloe).

Harry Potter- I love when the next gen goes to the past but what if it was the Harry and almost everyone of his year(maybe a few of the younger or older ones...mostly because Percy Weasley is my fav xD) decide to fuck up with a few people and do a ritual that takes them to the beginning of their fourth yea? Some of the things they could do besides fucking up even more with Voldemort plans and stealing the horcruxes sooner, etc are: Draco Malfoy opening a baking/cooking course that he teaches with a muggleborn(not Hermione), them eating in the the other houses' tables instead of their own(or maybe at breakfast they all eat at one table, lunch another, dinner another, and it goes like that with the order changing everyday since there are 4 houses and 3 eating times), Ron befriending and flirting with Viktor Krum to the surprise of his siblings, Padma and Parvati creating a club about religion but instead of it being a religion we all know it is one dedicated at a random object that they will claim as their god(they are faking it so well that some teachers start asking themselves if it is a muggle thing that they have no idea about), Seamus and Dean acting like they hate each other in front of all student but then inside their house's common room they would be acting like those lovesick couples, Neville cursing every three minutes, Hermione reading fanfics instead of studying(of course that she still will have one of the best notes of their year, she is still Hermione after all), Pansy proclaiming that she will take Fleur as her date in the Yule ball, Susan and Theo doing tiktok dances(I was going to choose a ravenclaw but I can't remember one from Harry's year), the hufflepuffs pranking everyone but those that came to the past with them, the ravenclaws transforming themselves into ferrets when 'Moody' does that to Draco and attacking him, etc(just chaos while in the background they mess up with Voldemort and the Deatheaters besides saving those who had died like Cedric, Sirius, Severus, etc)

TTIRAAS- The typical Rimuru finds himself bored so Ciel offers the option of traveling to the past but this time it includes his closest subordinates(not just the 12 Guardians and I am certainly counting with Ramiris and Veldora) and Milim who travel to the past with him. Things would be basically the same for those outside Tempest but as they followed canon, they saved more people while planning how to mess up with their enemies and others. Something that could happen: Diablo appearing before Guy and claiming that he will fight him for the honor of marrying Leon(or maybe he will fight Leon to get the honor of marrying Guy...any version would be funny), Kumara and the others who worked with Clayman subtly fucking his plans while acting as if Clayman had control over them, Benimaru panicking as now he had a chance to also be with Souei but he wasn't sure if the blue oni liked him so his wives are the ones to go to Souei to ask him for hand his marriage right in front of the other ogres that our 6 favourite ogres saved, Gabiru acting completely different to what his father and the rest of the tribe knew while his sister and squad tried not to laugh or make him break character(they were sucessfull until he saw whoever the writer decide to ship him with), Rimuru using whatever clothes his people choose but when he goes to the Demon Lord meeting he uses a chinese wedding dress(even if technically no one would know it is a wedding dress) and fights Clayman while wearing it(because it would hurt more if Rimuru was using such elaborate clothes when taking care of him), Milim shouting 'Mama! Papa! Thanks for playing along!' as she runs to Veldora and Rimuru, etc(basically anything out of character or that would be funny but it is the writer decision how they actually deal with each enemy and who they would save)(if anyone chooses to do this, I would prefer if it wasn't an harem fic but if they choose to it then do a poly and mixed one: they are married to Rimuru but also to each other besides it involving both female and male characters)

Mashle- For some unknown reason the group from Adler house(Mash, Finn, Lance, Dot & Lemon) end up in the past and create chaos and by this I mean that Mash, Lance, Dot and Lemon do it while Finn is in the back having an anxiety attack and being done with them at the same time. Like they forget that Abel and the others aren't their friends yet at the time, mention things that still haven't happened(like Finn having gained a second line or a fight that will happen in the future), etc. To make it funnier maybe when Innocent Zero appears have Finn plead for him to kill him as he doesn't think he will survive much longer with all the anxiety his friends(especially Mash) make him have. About ships....it can be the writer's choice but I would like it to not be an harem but maybe you can have one of them create a betting system where all other students bet on who the members of the group are most likely to end up with(maybe even have the five of them be in a poly relationship?)(being sincere, anything crazy can happen in this universe or has already happened so for this one it probably is mostly having the sane member of the group, Finn, suffering with the others forgetfulness, obliviousness and stupidity...and I am saying this while having Finn as my fav and baby xD)