C739 739 hole!

After the group had eaten dinner, Ruan Suixin returned to his room but he did not manage to find the cave.

"Ugh ?"

Was this because he couldn't come up with a solution, or did he not know what that was used for?

Thinking about it again, Yin Liuli seemed to have never stayed in the countryside before.

It seems like only the country kids know about it