Kioken

Powerscaling is all over the place, Naruto felt like an art made by some with passion and Boruto is like a anime which pulls out bs powerups for bs opponents with bs powers. Man they ruined the entire ninja theme Having Isshiki as the final boss would have made more sense and more fun and as he was originally with Kaguya it would have been a better story. Now the entire ninja theme is out of the story hand signs are gone, dojutsus are now as common as d rank jutsus, Rinnegan is now like apples on trees. And the most powerful hokage of the history is now the most weakest hokage of the history 🤦‍♂. I truly feel bad for Naruto.

Only Monarchs can have spiritual body manifestation and ruler's authority which means solo leveling is far from over. These hunters are likely the incarceration or choosen ones of other Monarchs. Because I doubt they wouldn't know what Ashborn was doing. And it's not like they can't do the same.