C1186 Suicidal Sword Technique?

In the bathroom of the Sacred Horn Palace.

Young Lord stood at the exit of the tunnel.

He had been waiting here for a long time. Naturally, he would not do something like entering the underground tunnel to look for clues, but rather let his Personal Guard go down.

After a long time, just when Young Lord's patience was about to run out, Personal Guard finally crawled out from inside