Regenerating a Stage Nine Demon Beast's blood was a lot harder than simply healing them. Well, healing was already very hard due to the difference in cultivation, so one could only imagine how worse the other one was. That being said, Rean and Roan didn't leave Darian's underwater palace for the next two weeks. There was no helping it since Darian's blood recovered very slowly.
During this time, Roan and Kentucky decided to cultivate. Celis was always cultivating and pulling everyone up, but of course, the more of them cultivating, the faster it was. Back in the Demon Beast Alliance, Phex had already passed all the orders as the demon beast armies moved out. This time, he was going all out.