C39 Spring Wind Is but Black River Pool(2)

Eight door interlocking array?

I have heard of this array before, and it is a rather evil one. It seems to be a type of summoning technique that relies on the best conditions in the world and three conditions.

In the daytime, it referred to the time when the Yin Qi was at its peak. As for the location, it referred to the place where the Yin Qi gathered.

As for the last person