Shin Uchiha certainly did not believe he possessed the legendary kingly hegemony aura that let him effortlessly recruit followers wherever he went and have them all remain unwaveringly loyal.
In Shin Uchiha's mind, apart from his clansmen, whom he could trust to some extent, anyone else who wanted to serve under him had to undergo Kotoamatsukami before he could feel at ease. That way, even someone who was not particularly loyal would become utterly devoted to him.
After all, a shinobi's duties included ambushing enemies and stealing intelligence. How could anyone expect people like that to remain unfailingly loyal? Besides, Talk no Jutsu existed in this world too.
Take Naruto Uzumaki, for example. His Talk no Jutsu could persuade even Nagato and Obito Uchiha, two men who had followed their chosen paths for well over a decade. What was impossible in a world like this?
So, after bringing Zabuza into his service, Shin Uchiha immediately used Kotoamatsukami on him to ensure his future loyalty. It was better for everyone that way.
After a momentary daze, Zabuza discovered that his surroundings had changed completely. The sudden shift startled him, and then the words "Space-Time Ninjutsu" sprang into his mind, sending another wave of shock through him.
Everyone in the shinobi world knew Shin Uchiha was powerful, but almost no one knew he was also proficient in the legendary Space-Time Ninjutsu. Once again, Zabuza had to revise his understanding of him.
Shin Uchiha brought them straight to the Elder's home and summoned two Uchiha Clan shinobi skilled in Medical Ninjutsu, asking them to take Zabuza away to treat his injuries. Since Zabuza was now his subordinate, he might as well have him healed so his injuries would not interfere with anything later.
Next, Shin Uchiha settled the kitten-like Haku into his own