Wish's guild system is very different from other MMORPGs, in that there is more than one "stage" of a guild. Can you explain briefly how the system works?

A Guild is what we've come to normally associate with a term, members of a Guild have their name, a common chat channel, support for officer ranks, permission structures, a Guild bank account, etc (basically everything a Guild can do in most games). The Houses are Guilds that have chosen to take settlements back from the forces of chaos and barbarism and re-establish civilization, they are responsible for the safety, management, and well-being of their domains, and in return they receive tax revenues. It is entirely possible that most Guilds may never choose to become Houses, confining themselves to PvE and trade activities without tying themselves down to a particular piece of land. We'll have a full game for these players to engage in, but even for them the activity of the Houses should make the world a more interesting, exciting place.