So maybe

There's people above space and time

And that makes it more interesting

He has his memorys tho

Did you just erase his memory about the God who reincarnated him HE KNEW ABOUT THE GOD BUT NOW HE DOESN'T

Also all shotas aren't submissive I've seen dominant shotas stop stereotyping

His or her

Maledom?

Bro it's venom he either eats alot of chocolate or he eats humans or he makes his host believe they have cancer and then boom they get cancer

I'd smash

I mean u got to put in the effort to get rewarded by the system

Kalahashi

Lastly it's basically if u don't do what I say I can turn u into a monster if I disobey monster etc not saying rias would do it but she can so yea slavery and u can only get out of it by becoming a high class demon which takes hella long issei only became one due to him being the protagonist

And as a human he has none of those weaknesses and can even adapt to both of them

He gets a weakness to light and can't touch holy water etc

Being able to promote doesn't really matter cause this man is busted

There's no benefits isseis the red dragon Emperor

Really don't

What happened to the revolver

He lived in the slums