Oooooh. This. Add nothing thing to the list of reasons I sometimes Hate Fanfic writers. I explained in the Problems with Izuku X Crossover Female Stories Book that If you have a Girl from another IP Don't make it a Harem. Well Here. If you're going to do a Jaune Arc story. DON'T ADD ANOTHER IP TO CROSSOVER WITH! ESPECIALLY THAT IP IS ATTACK ON TITAN! Now. I Hate AOT But Love one of the OP's in it. I'll get into my Reasoning why I hate AOT in the future if I remember it. But Right now. I need to address something. The Arc's Gundams. A Darkdecade97 book that Gives Jaune and his sister Gundams. Giving Something. This is probably a good Crossover story. I mean. Believe that Hell Is freezing over but I believe Arcadia can make Mobile Suits. Probably Nothing like a Gundam or a Big Zam But ya. A mobile suit in Remnant is possible with Arcadia. But. Oh dear lord. Instead of us Seeing what Remnant Thrives of the invention. Arc and his sisters are sent to the World of AOT! That book was dead to me once I found out that. Like NO! There Are IPs I wish that No book crossovers with. They are.

Naruto

AOT

Death Note

and

Dragonball

Now here are my reasons.

Naruto just feels wrong. Having Ninja's Getting a Punched in the Gut by Advanced Technology feels so wrong.

AOT is just a Sin for me to crossover and you'll never see me do an AOT crossover for as long as I live.

There are a few IPs I'd allow Dragon Ball to crossover with Just limit the two OP Sayians Named Goku and Vegeta.

And Death Note. Well. It's just a guy with an Enchanted notebook that can kill people. What did you expect? This is No substance to cross it over with. Crossing over the Death Note allows the user of said book to end the conflict by just writing the name on it and waiting for some time for the book to kill the person with the name. Do you know how easy it would be in an anime with that Bullshit? Super easy. You just got to make sure you get that guy on your side and bam. The Book is over before it reaches the second Chapter. Sure you Can limit the book on WHO it can kill but that's just being petty. But I will allow you to crossover it if your Book is a revenge book and No. Jaune arc books do not count you need to have some drama With the cast.