Factions are a series of quests and missions that you are asked to complete in support of a certain faction, completing factions can be very fun and rewarding! Kill monsters you wouldn't otherwise attempt, explore places you didn't know existed and be rewarded with valuable items and equipment, gain access to new hunting spots, travel routes and even a new spell for your vocation!
You can work on all factions at once so do not feel like you have to pick one over the other, the main factions are a lot more difficult and time consuming to complete compared to the sub factions.
