The second time was when she passed by this place incidentally while coming back, and she avenged Yun Ruoshui and Ye Jun after they were bullied. So added together, this was her third time entering Endless City.
"If I remember correctly, I discovered an underground cave in Endless City, and a powerful spirit beast was residing in the cave, so I was unable to investigate it before! And I was in a hurry last time, so I did not have time to enter the cave." Yun Luofeng stopped walking and turned to look at Yun Xiao. "This is the only suspicious place inside Endless City."
Yun Xiao pulled Yun Luofeng into his arms, his features gentle. "Then let's take a look now."
"Alright."
They did not hesitate any longer and entered the giant cave.
...
It was pitch black underground, but Yun Luofeng saw the dense black fog creeping toward them. She said, "Yun Xiao, this black fog is poisonous. Remember to not breathe," and held her breath.