C309 Hexagonal correlation

"Alright Yue Han, if we continue walking, then we will reach the end of the tunnel. In the afternoon, Captain told me to use my key to lock that iron gate, so if there really is someone here, we can see it after we turn a corner!"

When they were about to turn the corner, the member carrying the M14 spoke.

"Then be careful!"

Saying that, Yue Han raised the rifle in his hand