The Bounty Arena was open for half a month. The first twelve days of the event were pretty much routine. The last three days were the craziest days. High rank bounties only appeared during this time. Of course, the highest rank available was sovereign rank. The sovereign rank bounties didn't only include bounties that were posted on the spot by visitors. The incomplete bounties that were accumulating dust at the back of the Temple would also be making an appearance.
During these final three days, only bounties of rank six and above could to appear. This also meant that the reward for all bounties that appeared during this period were worth a million saint spirit stones at a minimum. No other bounties beneath this sum was allowed in the Bounty Arena. Although the rule barred low rank bounties from entering the arena, it wasn't a problem because most of them had already made their appearances during the first twelve days.