C547

Could this be related to the Esoteric Immortality Technique?

He did not want to go there, but he still felt that it was no coincidence that Zuo Xi Yan wanted to read such a book. However, for some reason, Song Chenyi felt that there was some mysterious conspiracy slowly approaching him.

Qiu Yi Country, Ouyang Mu's house.

If he had been in an ordinary person's house