Leo changing?
After everything was sorted between all of them, both Erin and Leo were welcomed into the shelter. It took awhile for the others to get used to them, but because Arthur was treating them so nicely, the others felt like they needed to as well.
During their time on the planet, the three of them would frequently go out to train by the river, which was Arthur's spot. Knowing Leo was a new vampire. Arthur taught as much as he could and told them information about the vampire world, at least all that he could remember.
While there, Leo was concentrating on focusing his Qi better and also had passed all of his information to Erin. It turned out she was a fast learner. The main reason for this was her drive. She had the will to learn and get stronger all though this power-hungry side of her worried Leo a bit.