LazyTanaka
Maybe you should ignore the rift for now and just guard it, it can destroy your plot by a lot since you will have to focus on the war while thinking of ways in maintaining the gate and the other side doesnt invade your city, it cost people to guard the gates and the border skirmishes even if you ignore it as far as we know the hidden villages are greedy ones always looking for resources, your city became the medium that is upholding the remaining patience the other villages have because they fear the unknown, this is just my opinion tho HAHAHAAHA XD
if you do this it will be boring. don't let other world combine. once you solve Naruto world let him go to other world like one piece and create his own country or organisation. after solving one piece let him go somewhere else..... you don't have to create country all the time. you can create government, organizations and ......
Interesting chapter just needs more development. I would like to see the point of view of the people who go to the cob, that of the deadly sins after receiving their powers and that of the people from abroad. But the truth is a good chapter. Nice addition about the door but too early in my opinion. At least make sure they have a timer so they won't have until after a few years. One more thing, there was another continent in Naruto but it was barely explored and there was only one village (It's canon) You can get out of control there.