Divine Doctor Tang Feiyu! A Lion's Mouth!

Guo Kai set out to purge the traitors within, yet not only did he fail to find them, he nearly ended up poisoned to death himself.

Had the Spy Bureau not possessed a life-saving antidote at the time, grass would already be growing on his grave.

The invisibility and suddenness of this assassination attempt caught him completely off guard.

He was so terrified afterward that he couldn't even sleep.

Ever since then, he had recruited the strongest teams of Hu Spies to guard the Chancellor's Mansion with absolute vigilance, ensuring that not even a fly could slip inside.

Yet, those assassins seemed to emerge from nowhere, infiltrating every nook and cranny.

Not only had they turned the Chancellor's Mansion into a sieve, but they were relentless.

Poison, hidden weapons, traps... their methods were endless. His mansion had practically become a den of demons; he had to be cautious not only when eating or sleeping, but even walking a few steps outside could lead to him stepping into a trap and being poisoned.

At this point, Guo Kai's scalp went numb; seeing that these Hu Jia could not intercept the assassins, he simply ordered them to protect him at his side.

With three teams of Hu Jia taking turns guarding him closely, he assumed there would be no more problems, yet every single day, a Hu Jia would drop dead right before his eyes.

The causes of death were all gruesome and varied.

The most terrifying part was that among these assassins were masters of disguise who hid among the Hu Spies, nearly killing him several times.

He hadn't even caught a glimpse of what the assassins looked like.

They could assassinate him and retreat unscathed; he had no idea what kind of immortals had jumped out to plague him.

It