C286 True action of seven yin substances

The Demon Honglian who was suppressed at the bottom of the mountain, being able to fight with the Genuine Body of Arhat for seven days and seven nights, one could imagine how terrifying he was.

It had been many years since it was exterminated. Once it was born, it could be considered a great danger to both the Dao, Buddha, and Buddha.

And I just need this hidden danger to mess up the two doors