Immigration policy
Yuriba's immigration policy governs the admittance of newcomers to the island. It liberal enough that its existence is not widely known. By the terms of the policy human females may come and go from the island as they please with no interference, but most other groups are treated with at least minor scrutiny.
Immigration policy is handled by the Town Council, often the interns in particular.
Nonhuman species
Humans may enter Yuriba freely, but all other races are subject to at least a review by the island's government to ensure compatibility with the island's other residents. Generally this process is a formality for most species, as native Yuribans themselves are a racially diverse society and do not often discriminate on the basis of species.
Real angels and demons are scrutinized particularly closely before entering Yuriba due to their inherent power and status as holy figures of foreign religions. Their presence is said to disturb the Lady. Males are subject to the most scrutiny of any incoming group, and after past issues with those who were allowed to enter, they are now barred from immigration unless they have permanently become female. A few male citizens do still remain from earlier years.
The undead are generally considered abominations and not permitted to enter Yuriba, with very few exceptions; those that rely on other intelligent species for sustenance are universally barred.
Powers
Yuriban immigration policy focuses heavily on the powers and abilities of its visitors. Those who wield powerful magic or use highly advanced technology are often warned that the nature of the island may restrain their powers or be required to leave their devices behind. This is a cultural constraint as much as a security one, as it is said that the island's goddesses are cautious about the risks of allowing very powerful individuals from other worlds into their society. However, the council still keeps immigration records on the abilities of residents.