[@Chris488]

Absolutely! As for whether or not the number of people who can join us reduced not at all! While we have the seven deadly sins demons being chosen lesser known demons such as Gello can and will be incorporated. You can pick literally any demon for parents, any power, so the possibilities are endless! 

As for the human world think of it as exactly like our own world that we know now! Whether or not the world they arrive in once everyone has grown in power is the same as when they left it... Well that'll be a surprise for part two. Gello's World for Gifted Demons.

[@The World]

Absolutely you can have sloth! ^-^