Here's a story suggestion

As to why I'm only doing suggestions, I'm swamped in my own work outside of Fanfiction and additionally my Wattpad account has been slow to. So it's easy to see that stress from outside work is taking a toll on my creative ocean... still I do have ideas I just can't put them on paper at the moment. But I'm sure some other people have ideas of their own involving these Ben 10 crossovers. So yeah, here's one.

Ben 10 X Zettai Karen Children

Plot; Ben somehow gets to the world of Zettai Karen Children And isn't able to find his way back for the time being. Then meets said esper girls and joins their team known as the children to handle PSI crimes caused by unruly espers or terrorist organizations that want all espers gone.

Alien count; all the original aliens from Heat Blast to Way Big, and gradually gains the AlienForce and Omniverse aliens in his battles.

Ben's age: 11, right after he fought Malware

ship?

You're choice; be it BenxKaoru, BenxShiho, BenxAoi, or maybe all three, you choose.

Should any of Ben's villains show up? learning from other writers I'd think it'd add some spice to the daily trouble of the Zettai Karen world. With alien hitmen, Mad animal mutating scientist, Alien armored Biker girl, Sorcerers, all sorts of randomness.

Ben's Relationships between the Zettai Karen characters.

Kaoru; practically best friend, loves to hang out with. Though can be a bit weirded out by her "habits".

Aoi: like a second Gwen, smart and has a sharp tongue, only less annoying and admittedly cuter.

Shiho: cute, fun and reliable, but annoying since she can read minds and can be very scary.

Koichi; like Grandpa Max, but can get very scary when he's angry.

Chief Taizo; funny but very scary when it comes to someone insulting the Children.

Kashiwagi: like a teacher who's actually nice to her students and is a hard worker. But can be terrifying, especially when she's mad at he chief.

Naomi; a very cute, quirky and funny older sister who needs help every so often, and definitely acts like the big sister to Ben. But put her near any weird old men that are creepy and pervy and she becomes scary.

Anything else that can be added

Your choice, whether to give Ben his own esper power as an example. The rest is up to anyone who wants to take up this challenge.