9-veined cultivation pills were great. They were even better when one got them for free.
In a way, the dragons weren't getting the pills for free considering they had to subject themselves to daily experiments with Alex, but Alex could easily decide not to give them any pills, and he would be right to do that. The pills were a bonus, and both dragons were more than happy to receive them.
Qing Fuojia had less strict oaths, so she was much happier than Qing Guihan, who had to give up his blood every week to Alex for some reason.
Neither of the beasts still understood what he was doing exactly, but they were more or less certain it had something to do with the hybrid. The White Tiger had trace amounts of the Azure Dragon's bloodline, and Alex was certainly learning from their bloodline to help the beast.
As for what exactly, they could not be sure.
