Fastfairyland

Debt and entanglement

Fairies have a magic debt system. Debt is caused by taking actions that help or hurt a fairy, for example giving them gifts, singing to them, hurting them, etc. Fairies can natively sense debt. Debt can only exist between pairs of people at least one of whom is a fairy.

If one person is in debt to another person, they are entangled. Knowing someone's name (not just their birth name, but any name they've used a lot) also causes entanglement. Debt wears off very slowly over time (?)

Lying, disobeying orders from someone you're in debt to, and some other things cause misfortune. Misfortune is basically bad luck; it can come in the form of sudden pain, bad weather, or other "natural" consequences. Misfortune affects everyone who is entangled with the person who caused the misfortune, which is why it's bad to be entangled with too many people.

Time and space

Fast-fairies experience time 1000x faster than everyone else, unless slowed down. They have a debt system and a misfortune system. Misfortune hits everyone entangled with the person who caused it. Debt causes entanglement, as does knowing someone's name (and not just their birth name). Lying and disobeying orders from someone you're in debt to and some other things cause misfortune. A fairy must be slow to gestate a child, which is part of why children owe very large debts to their parents. Humans who go in fairy circles are sped up in the circles and must be entangled with fairies (maybe?) to stay sped up. Fast people can travel along paths in ways that cause them to be temporarily smaller, and need not eat anything besides dew. 

Fast-fairies exist parallel to human society, typically Medieval Europe's society, and are at that time most concentrated in Ireland.

Fast people can travel along magic "paths" in ways that cause them to be temporarily smaller. Fairies need not eat anything besides dew.

A fairy must be slow to gestate a child, which is part of why children owe very large debts to their parents.