C141 Strong Will-o '-the-wisp

I chased after it. That thing ran very fast, but with the existence of the Yin Eye, chasing it shouldn't be a problem.

I also discovered that after settling down during this period of time, the amount of time I could control the Yin Eye had increased by a lot. It seems like it's because of the smoke, this guy is currently in closed door cultivation. I don't know what he's doing