Moonlacing is what they call when two or more of us who have been brought here generate Chroma, which is something only we can do... and that we have to do, because the consequences if we don't are. Not good.

And ... when he showed up, I already knew that some people come from different times than others. Hanguang-Jun is from later than me, but Senior Wei is from earlier, and I think Sect Leader Nie is from earlier yet... and so on. So I think Xiao Daozhang is just from... before the last part of what happened to him happened?