mmmm i don't have any ideas TmT i'll try to think up something interesting though.
kenji probably would've just left the villain hideout to go to UHA,,, so along the way he could've come across them? that's all i have right now lol im sorry i cant think up of anything else >m<
well idk how much natsu would be leaving uha grounds given he's only a kid and all. maybe komaru and kenji could be arriving at the uha training grounds or something and natsu is around there just kinda watching?