The master craftsman was worried and didn't dare accept the work initially, because if anything illegal was discovered, he'd also be implicated for helping make the arrowheads.
In the end, it was Hua Chengtian's persuasive assurances that it wasn't for anything illicit, just for hunting in the mountains, coupled with his robust physique that resembled a hunter's, that finally convinced him.
Of course, the deciding factor was the price; eventually, the master took on the job, creating a hundred specially-sized arrowheads for Hua Chengtian, including twenty smaller ones. Anymore and the master wouldn't take it, as he felt these should suffice for hunting.
Later, Hua Chengtian crafted these hundred arrowheads into Crossbow Arrows modeled after a crossbow, but they just sat in the room being quite sharp.
And now it was time for the final step: to test the speed and lethality with the Crossbow Arrows.