His hands were shaking when he received the package. It was a large envelope with a piece of thick brown leather within the paper envelope. The leather was so thick that it could be used as a mat.
The force diagram is the image drawn on the piece of leather. The leather was made from the skin of a powerful beast.
He caressed the leather material carefully and said, "It should have been made from the skin of a second coil beast. So the leather itself is precious."
He had paid a lot and done even more to get this force diagram. So he was a little wary when he received it.
It would be unfortunate for someone to rob him of it. It won't count as him breaking his oath, but he would be losing what he worked so hard for since the beast hunting center won't give him another one.
So he looked around with vigilance. Then he stuffed the envelope into his robe and descended the building.
He is currently on the fourth floor. So it took a long time for him to leave the building.
