"Alright, then what?"
"World information seeping through is fairly common, but soul transmigration is exceedingly rare. Anyone capable of transmigrating—and keeping their soul intact afterward—has one thing in common: they're exceptionally powerful."
"So?"
"At the time, you were in a muddled soul state, so we took up residence within your soul."
"Heh." Hayato laughed. "You never considered taking it over? Uh, how should I put it... right, possession! You never thought about that?"
"We did."
Ukanomitama showed no embarrassment whatsoever. "Not only did we consider it, we did exactly that. We just failed—and failed miserably. More than a hundred of us combined still failed to possess you, and it was an absolute rout. Most of us fell into slumber directly to avoid perishing, while some were scattered apart and still haven't fully recovered."
Ukanomitama pointed at "Hannya" and "Satori"...
"That's how they were split apart. It shows just how powerful your mind is. Without any conscious awareness, you still relied solely on instinct to grind wandering ghosts like us into the dirt.
"Setting aside this so-called system, why do you learn other ninjutsu so quickly? The Yin Seal, Spirit Transformation Jutsu, Flying Thunder God... You encountered no bottlenecks at all with these S-rank ninjutsu. It was all so easy..."
"I thought it was because of the system."
"The system did play a part," Ukanomitama said, "but it only provided guidance. The real reason is your terrifying mental strength."
"Got it. The key is that I'm a pretty decent guy too, right?"
Hayato grinned.
Ignoring Hayato's narcissism, Ukanomitama continued, "Although our possession attempt failed, it also let us see hope."
"Hope?"
"That's right! But it's quite a long story."
"Then keep it short."
"Our race has been called many things by humanity—demons, monsters, ghosts, even gods. Yet in essence, we are