Time Immemorial Loophole!

[ninjarasengan]

A way Kishimoto can introduce a new character on Kaguya's level?

Simple. Remember the fact that the God fruit was forbidden during Kaguya's time? Also, that it was known to grow every millennium.

Now, suppose in an even further time beyond recorded history a person/or even more than one person ate said fruit...But this time Chakra isn't spread to the rest of humanity.

 

[-immortal-]

Or he just introduces kaguyas Parents and GG

 

[Angelic.]

someone who kept it for themselves and didnt have kids. maybe

 

[Heisenberg Wannabe]

I'm calling it, there are more divine trees like Shinju from different planets.

 

[ninjarasengan]

I'm calling it, there are more divine trees like Shinju from different planets.

I was intentionally trying to avoid the aliens route

More divine trees...the potential for power inflation if someone decided to absorb more than one of themh:

Hm...He could go with a person close to Kaguya betraying her and trying to steal her power.(Say a husband she shared power with). That would give reason for her to go crazy.

Well he's got options without it being an a$$pull like people have been saying.