Naruto: I Transmigrated? But I’m in the Land of Iron

[Land of Iron + Konoha main storyline + slice of life + beloved by everyone + healing] A young man died in his prime and transmigrated into the Hokage world. But if transmigrating wasn't bad enough, he didn't end up in any country he recognized. Instead, he landed in a special country that barely appeared in the main story: the Land of Iron. Well, the Land of Iron it was, but he barely knew the plot, so he could only leave it to fate. He thought he could live quietly in a corner of the world, but the person who found him was Mifune, the general of the Land of Iron. He naturally became Mifune's grandson, and then, by a twist of fate, had to go to Konoha. Great, now all the pieces were connected. He met the Konoha 12 and then somehow got caught up in the main storyline. His golden finger might show up later. The protagonist mainly uses a samurai sword rather than ninjutsu and chakra. Of course, the mention of samurai swords inevitably brings to mind even more fantastical blades... [There may be some OOC moments and errors in the plot. Please bear with me.] [No CP. Ship whoever you want, but if you can't accept certain elements, I don't recommend reading. Best not to overthink it! ]