Indeed, the Qin Dynasty lasted from 221 to 206 BC. Mahayana Buddhism was introduced in the next Han period (206 BC-220 AD), and they weren't for a long time a force in Jianghu, which is as far as our characters are concerned.<br/><br/>The dominant religion at the time of our game was roughly a form of ancestor worship, focused on the shen (roughly translating to "spirits"), yin ("shadows"), the realm they were said to live in, and offering sacrifices in an attempt to contact this other world, believed to be parallel to the earthly one.