Josef explained the situation briefly, but struck all the important points!
The information provided by him was something that Kyoya was glad for. The huge amount of the bha stones would be enough for a few months at most which are not something he was satisfied with.
But the origin should be sated with more energy as it gives birth to bha stones daily. This would last for a long time! By the time the origin gets depleted out of its energy, Kyoya will have been probably doing more research on higher floors with much higher energies!
The only one who was not so satisfied with Josef's appearance was Xaya. She wanted the night adventure to be with her husband only! As clingy as she is, Xaya couldn't approve of Josef.
It was a man who was exuding 'filthy' vibes as well.